1121022112212 has 36 divisors (see below), whose sum is σ = 2841588116640. Its totient is φ = 372633158352.

The previous prime is 1121022112183. The next prime is 1121022112229. The reversal of 1121022112212 is 2122112201211.

1121022112212 is a `hidden beast` number, since 11 + 210 + 221 + 1 + 221 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×1121022112212³ (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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43356858 + ... + 43382705.

It is an arithmetic number, because the mean of its divisors is an integer number (78933003240).

Almost surely, 2^{1121022112212} is an apocalyptic number.

1121022112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121022112212 is an abundant number, since it is smaller than the sum of its proper divisors (1720566004428).

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

1121022112212 is a wasteful number, since it uses less digits than its factorization.

1121022112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86739932 (or 86739927 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1121022112212 its reverse (2122112201211), we get a palindrome (3243134313423).

The spelling of 1121022112212 in words is "one trillion, one hundred twenty-one billion, twenty-two million, one hundred twelve thousand, two hundred twelve".