22031142402 has 32 divisors (see below), whose sum is σ = 44273819520. Its totient is φ = 7308524160.

The previous prime is 22031142391. The next prime is 22031142473. The reversal of 22031142402 is 20424113022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1430499 + ... + 1445817.

It is an arithmetic number, because the mean of its divisors is an integer number (1383556860).

Almost surely, 2^22031142402 is an apocalyptic number.

22031142402 is an abundant number, since it is smaller than the sum of its proper divisors (22242677118).

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

22031142402 is a wasteful number, since it uses less digits than its factorization.

22031142402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16458.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22031142402 its reverse (20424113022), we get a palindrome (42455255424).

The spelling of 22031142402 in words is "twenty-two billion, thirty-one million, one hundred forty-two thousand, four hundred two".