31001100022 has 16 divisors (see below), whose sum is σ = 48549668832. Its totient is φ = 14818605120.

The previous prime is 31001099951. The next prime is 31001100029. The reversal of 31001100022 is 22000110013.

It is a super-2 number, since 2×31001100022² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31001099981 and 31001100008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31001100029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95463 + ... + 266674.

It is an arithmetic number, because the mean of its divisors is an integer number (3034354302).

Almost surely, 2^31001100022 is an apocalyptic number.

31001100022 is a deficient number, since it is larger than the sum of its proper divisors (17548568810).

31001100022 is a wasteful number, since it uses less digits than its factorization.

31001100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364023.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 31001100022 its reverse (22000110013), we get a palindrome (53001210035).

Subtracting from 31001100022 its reverse (22000110013), we obtain a palindrome (9000990009).

The spelling of 31001100022 in words is "thirty-one billion, one million, one hundred thousand, twenty-two".