122222021011020 has 144 divisors (see below), whose sum is σ = 423708955557888. Its totient is φ = 27936069678720.

The previous prime is 122222021011009. The next prime is 122222021011033. The reversal of 122222021011020 is 20110120222221.

It is a happy number.

122222021011020 is a `hidden beast` number, since 1 + 222 + 220 + 210 + 1 + 10 + 2 + 0 = 666.

It is a super-2 number, since 2×122222021011020² (a number of 29 digits) contains 22 as substring.

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 = 122222021010984 and 122222021011002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94349337 + ... + 95635983.

Almost surely, 2^{122222021011020} is an apocalyptic number.

122222021011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122222021011020 is an abundant number, since it is smaller than the sum of its proper divisors (301486934546868).

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

122222021011020 is a wasteful number, since it uses less digits than its factorization.

122222021011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362060 (or 1362055 counting only the distinct ones).

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

Adding to 122222021011020 its reverse (20110120222221), we get a palindrome (142332141233241).

The spelling of 122222021011020 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, twenty-one million, eleven thousand, twenty".