121322120 has 16 divisors (see below), whose sum is σ = 272974860. Its totient is φ = 48528832.

The previous prime is 121322101. The next prime is 121322129. The reversal of 121322120 is 21223121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121308196 + 13924 = 11014^2 + 118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121322095 and 121322104.

It is not an unprimeable number, because it can be changed into a prime (121322129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516487 + ... + 1516566.

Almost surely, 2^121322120 is an apocalyptic number.

121322120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121322120 is an abundant number, since it is smaller than the sum of its proper divisors (151652740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121322120 is a wasteful number, since it uses less digits than its factorization.

121322120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033064 (or 3033060 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121322120 is about 11014.6320864566. The cubic root of 121322120 is about 495.0472627728.

Adding to 121322120 its reverse (21223121), we get a palindrome (142545241).

The spelling of 121322120 in words is "one hundred twenty-one million, three hundred twenty-two thousand, one hundred twenty".