31102222002 has 32 divisors (see below), whose sum is σ = 62786997504. Its totient is φ = 10270587600.

The previous prime is 31102222001. The next prime is 31102222031. The reversal of 31102222002 is 20022220113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31102222001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427677 + ... + 495087.

It is an arithmetic number, because the mean of its divisors is an integer number (1962093672).

Almost surely, 2^31102222002 is an apocalyptic number.

31102222002 is an abundant number, since it is smaller than the sum of its proper divisors (31684775502).

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

31102222002 is a wasteful number, since it uses less digits than its factorization.

31102222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68134.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 31102222002 its reverse (20022220113), we get a palindrome (51124442115).

The spelling of 31102222002 in words is "thirty-one billion, one hundred two million, two hundred twenty-two thousand, two".