1220122122012 has 18 divisors (see below), whose sum is σ = 3084197586288. Its totient is φ = 406707373992.

The previous prime is 1220122121971. The next prime is 1220122122031. The reversal of 1220122122012 is 2102212210221.

It is a happy number.

1220122122012 is a `hidden beast` number, since 1 + 220 + 1 + 221 + 220 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16946140548 + ... + 16946140619.

Almost surely, 2^{1220122122012} is an apocalyptic number.

1220122122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220122122012 is an abundant number, since it is smaller than the sum of its proper divisors (1864075464276).

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

1220122122012 is a wasteful number, since it uses less digits than its factorization.

1220122122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33892281177 (or 33892281172 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1220122122012 its reverse (2102212210221), we get a palindrome (3322334332233).

The spelling of 1220122122012 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twenty-two thousand, twelve".