311010021122 has 16 divisors (see below), whose sum is σ = 469676950200. Its totient is φ = 154451175552.

The previous prime is 311010021121. The next prime is 311010021149. The reversal of 311010021122 is 221120010113.

It can be written as a sum of positive squares in 4 ways, for example, as 268003971481 + 43006049641 = 517691^2 + 207379^2 .

It is a super-2 number, since 2×311010021122² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311010021097 and 311010021106.

It is not an unprimeable number, because it can be changed into a prime (311010021121) 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, 6715598 + ... + 6761750.

Almost surely, 2^311010021122 is an apocalyptic number.

311010021122 is a deficient number, since it is larger than the sum of its proper divisors (158666929078).

311010021122 is a wasteful number, since it uses less digits than its factorization.

311010021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68917.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 311010021122 its reverse (221120010113), we get a palindrome (532130031235).

The spelling of 311010021122 in words is "three hundred eleven billion, ten million, twenty-one thousand, one hundred twenty-two".