1020112222212 has 72 divisors (see below), whose sum is σ = 2700598048512. Its totient is φ = 336670668000.

The previous prime is 1020112222201. The next prime is 1020112222223. The reversal of 1020112222212 is 2122222110201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020112222201) and next prime (1020112222223).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5097364 + ... + 5293707.

Almost surely, 2^{1020112222212} is an apocalyptic number.

1020112222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020112222212 is an abundant number, since it is smaller than the sum of its proper divisors (1680485826300).

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

1020112222212 is a wasteful number, since it uses less digits than its factorization.

1020112222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10391191 (or 10391177 counting only the distinct ones).

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

Adding to 1020112222212 its reverse (2122222110201), we get a palindrome (3142334332413).

The spelling of 1020112222212 in words is "one trillion, twenty billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twelve".