22321402 has 4 divisors (see below), whose sum is σ = 33482106. Its totient is φ = 11160700.

The previous prime is 22321399. The next prime is 22321421. The reversal of 22321402 is 20412322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22268961 + 52441 = 4719^2 + 229^2 .

It is a super-3 number, since 3×22321402³ (a number of 23 digits) contains 333 as substring.

It is a zygodrome in base 11.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580349 + ... + 5580352.

Almost surely, 2^22321402 is an apocalyptic number.

22321402 is a deficient number, since it is larger than the sum of its proper divisors (11160704).

22321402 is a wasteful number, since it uses less digits than its factorization.

22321402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11160703.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22321402 is about 4724.5531005588. The cubic root of 22321402 is about 281.5618583871.

Adding to 22321402 its reverse (20412322), we get a palindrome (42733724).

The spelling of 22321402 in words is "twenty-two million, three hundred twenty-one thousand, four hundred two".