1022122220112 has 120 divisors (see below), whose sum is σ = 3288745090176. Its totient is φ = 290286160128.

The previous prime is 1022122220111. The next prime is 1022122220219. The reversal of 1022122220112 is 2110222212201.

It is a happy number.

1022122220112 is a `hidden beast` number, since 10 + 221 + 222 + 201 + 12 = 666.

It is a super-3 number, since 3×1022122220112³ (a number of 37 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022122220111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2867623 + ... + 3204294.

Almost surely, 2^{1022122220112} is an apocalyptic number.

1022122220112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022122220112 is an abundant number, since it is smaller than the sum of its proper divisors (2266622870064).

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

1022122220112 is a wasteful number, since it uses less digits than its factorization.

1022122220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6072105 (or 6072096 counting only the distinct ones).

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

Adding to 1022122220112 its reverse (2110222212201), we get a palindrome (3132344432313).

The spelling of 1022122220112 in words is "one trillion, twenty-two billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twelve".