311122100122 has 8 divisors (see below), whose sum is σ = 466685522676. Its totient is φ = 155560259232.

The previous prime is 311122100101. The next prime is 311122100137. The reversal of 311122100122 is 221001221113.

It can be written as a sum of positive squares in 2 ways, for example, as 308934760761 + 2187339361 = 555819^2 + 46769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×311122100122² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311122100096 and 311122100105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522768 + ... + 946324.

Almost surely, 2^311122100122 is an apocalyptic number.

311122100122 is a deficient number, since it is larger than the sum of its proper divisors (155563422554).

311122100122 is a wasteful number, since it uses less digits than its factorization.

311122100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790832.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 311122100122 its reverse (221001221113), we get a palindrome (532123321235).

The spelling of 311122100122 in words is "three hundred eleven billion, one hundred twenty-two million, one hundred thousand, one hundred twenty-two".