2112111212202 has 24 divisors (see below), whose sum is σ = 4577086587684. Its totient is φ = 703906974144.

The previous prime is 2112111212179. The next prime is 2112111212251. The reversal of 2112111212202 is 2022121112112.

2112111212202 is a `hidden beast` number, since 211 + 211 + 1 + 21 + 220 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1748527537761 + 363583674441 = 1322319^2 + 602979^2 .

It is a super-2 number, since 2×2112111212202² (a number of 25 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 10741243 + ... + 10936110.

Almost surely, 2^{2112111212202} is an apocalyptic number.

2112111212202 is an abundant number, since it is smaller than the sum of its proper divisors (2464975375482).

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

2112111212202 is a wasteful number, since it uses less digits than its factorization.

2112111212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21682774 (or 21682771 counting only the distinct ones).

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

Adding to 2112111212202 its reverse (2022121112112), we get a palindrome (4134232324314).

The spelling of 2112111212202 in words is "two trillion, one hundred twelve billion, one hundred eleven million, two hundred twelve thousand, two hundred two".