22152013402 has 4 divisors (see below), whose sum is σ = 33228020106. Its totient is φ = 11076006700.

The previous prime is 22152013397. The next prime is 22152013453. The reversal of 22152013402 is 20431025122.

It is a happy number.

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., 13808835121 + 8343178281 = 117511^2 + 91341^2 .

It is a super-2 number, since 2×22152013402² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5538003349 + ... + 5538003352.

Almost surely, 2^22152013402 is an apocalyptic number.

22152013402 is a deficient number, since it is larger than the sum of its proper divisors (11076006704).

22152013402 is a wasteful number, since it uses less digits than its factorization.

22152013402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11076006703.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 22152013402 its reverse (20431025122), we get a palindrome (42583038524).

The spelling of 22152013402 in words is "twenty-two billion, one hundred fifty-two million, thirteen thousand, four hundred two".