31202040022 has 4 divisors (see below), whose sum is σ = 46803060036. Its totient is φ = 15601020010.

The previous prime is 31202040011. The next prime is 31202040041. The reversal of 31202040022 is 22004020213.

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

It is a junction number, because it is equal to n+sod(n) for n = 31202039978 and 31202040005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7800510004 + ... + 7800510007.

It is an arithmetic number, because the mean of its divisors is an integer number (11700765009).

Almost surely, 2^31202040022 is an apocalyptic number.

31202040022 is a deficient number, since it is larger than the sum of its proper divisors (15601020014).

31202040022 is a wasteful number, since it uses less digits than its factorization.

31202040022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15601020013.

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

Adding to 31202040022 its reverse (22004020213), we get a palindrome (53206060235).

The spelling of 31202040022 in words is "thirty-one billion, two hundred two million, forty thousand, twenty-two".