2112212022220 has 24 divisors (see below), whose sum is σ = 4435684017408. Its totient is φ = 844877424000.

The previous prime is 2112212022209. The next prime is 2112212022229. The reversal of 2112212022220 is 222202122112.

It is a super-2 number, since 2×2112212022220² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112212022229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281365 + ... + 3070675.

It is an arithmetic number, because the mean of its divisors is an integer number (184820167392).

Almost surely, 2^{2112212022220} is an apocalyptic number.

2112212022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112212022220 is an abundant number, since it is smaller than the sum of its proper divisors (2323471995188).

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

2112212022220 is a wasteful number, since it uses less digits than its factorization.

2112212022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923121 (or 923119 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2112212022220 its reverse (222202122112), we get a palindrome (2334414144332).

It can be divided in two parts, 211221 and 2022220, that added together give a triangular number (2233441 = T₂₁₁₃).

The spelling of 2112212022220 in words is "two trillion, one hundred twelve billion, two hundred twelve million, twenty-two thousand, two hundred twenty".