1122212220112 has 40 divisors (see below), whose sum is σ = 2303397463752. Its totient is φ = 527821824000.

The previous prime is 1122212220089. The next prime is 1122212220127. The reversal of 1122212220112 is 2110222122211.

It can be written as a sum of positive squares in 4 ways, for example, as 233988908176 + 888223311936 = 483724^2 + 942456^2 .

It is a super-3 number, since 3×1122212220112³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1122212220112.

It is a congruent number.

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, 568089 + ... + 1602232.

Almost surely, 2^{1122212220112} is an apocalyptic number.

It is an amenable number.

1122212220112 is an abundant number, since it is smaller than the sum of its proper divisors (1181185243640).

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

1122212220112 is a wasteful number, since it uses less digits than its factorization.

1122212220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172247 (or 2172241 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1122212220112 its reverse (2110222122211), we get a palindrome (3232434342323).

The spelling of 1122212220112 in words is "one trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twenty thousand, one hundred twelve".