122003621 has 8 divisors (see below), whose sum is σ = 123233088. Its totient is φ = 120780000.

The previous prime is 122003573. The next prime is 122003633. The reversal of 122003621 is 126300221.

122003621 is nontrivially palindromic in base 3.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122003621 - 2²² = 117809317 is a prime.

It is a super-2 number, since 2×122003621² = 29769767074223282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122003621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122003641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48761 + ... + 51201.

It is an arithmetic number, because the mean of its divisors is an integer number (15404136).

Almost surely, 2^122003621 is an apocalyptic number.

It is an amenable number.

122003621 is a deficient number, since it is larger than the sum of its proper divisors (1229467).

122003621 is a wasteful number, since it uses less digits than its factorization.

122003621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 122003621 is about 11045.5249309392. The cubic root of 122003621 is about 495.9724731623.

Adding to 122003621 its reverse (126300221), we get a palindrome (248303842).

The spelling of 122003621 in words is "one hundred twenty-two million, three thousand, six hundred twenty-one".