31112002220122 has 16 divisors (see below), whose sum is σ = 47806430899752. Its totient is φ = 15176528167680.

The previous prime is 31112002220111. The next prime is 31112002220183. The reversal of 31112002220122 is 22102220021113.

It can be written as a sum of positive squares in 4 ways, for example, as 3416401419201 + 27695600800921 = 1848351^2 + 5262661^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31112002220122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27281638 + ... + 28399150.

Almost surely, 2^{31112002220122} is an apocalyptic number.

31112002220122 is a deficient number, since it is larger than the sum of its proper divisors (16694428679630).

31112002220122 is a wasteful number, since it uses less digits than its factorization.

31112002220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457073.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 31112002220122 its reverse (22102220021113), we get a palindrome (53214222241235).

The spelling of 31112002220122 in words is "thirty-one trillion, one hundred twelve billion, two million, two hundred twenty thousand, one hundred twenty-two".