1021122112212 has 36 divisors (see below), whose sum is σ = 2581213057696. Its totient is φ = 340368330960.

The previous prime is 1021122112201. The next prime is 1021122112229. The reversal of 1021122112212 is 2122112211201.

1021122112212 is a `hidden beast` number, since 10 + 211 + 221 + 1 + 221 + 2 = 666.

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

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, 2314713 + ... + 2720319.

Almost surely, 2^{1021122112212} is an apocalyptic number.

1021122112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021122112212 is an abundant number, since it is smaller than the sum of its proper divisors (1560090945484).

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

1021122112212 is a wasteful number, since it uses less digits than its factorization.

1021122112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475548 (or 475543 counting only the distinct ones).

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

Adding to 1021122112212 its reverse (2122112211201), we get a palindrome (3143234323413).

The spelling of 1021122112212 in words is "one trillion, twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twelve".