11121211210122 has 64 divisors (see below), whose sum is σ = 26818031560320. Its totient is φ = 3395789654400.

The previous prime is 11121211210069. The next prime is 11121211210157. The reversal of 11121211210122 is 22101211212111.

It is a happy number.

11121211210122 is a `hidden beast` number, since 1 + 1 + 121 + 211 + 210 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11121211210095 and 11121211210104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60374379 + ... + 60558302.

It is an arithmetic number, because the mean of its divisors is an integer number (419031743130).

Almost surely, 2^{11121211210122} is an apocalyptic number.

11121211210122 is an abundant number, since it is smaller than the sum of its proper divisors (15696820350198).

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

11121211210122 is a wasteful number, since it uses less digits than its factorization.

11121211210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120932836 (or 120932830 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11121211210122 its reverse (22101211212111), we get a palindrome (33222422422233).

The spelling of 11121211210122 in words is "eleven trillion, one hundred twenty-one billion, two hundred eleven million, two hundred ten thousand, one hundred twenty-two".