11311220122 has 16 divisors (see below), whose sum is σ = 17045247744. Its totient is φ = 5629500000.

The previous prime is 11311220111. The next prime is 11311220131. The reversal of 11311220122 is 22102211311.

It is a junction number, because it is equal to n+sod(n) for n = 11311220096 and 11311220105.

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, 897847 + ... + 910357.

It is an arithmetic number, because the mean of its divisors is an integer number (1065327984).

Almost surely, 2^11311220122 is an apocalyptic number.

11311220122 is a deficient number, since it is larger than the sum of its proper divisors (5734027622).

11311220122 is a wasteful number, since it uses less digits than its factorization.

11311220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14565.

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

Adding to 11311220122 its reverse (22102211311), we get a palindrome (33413431433).

The spelling of 11311220122 in words is "eleven billion, three hundred eleven million, two hundred twenty thousand, one hundred twenty-two".