2012212022220 has 72 divisors (see below), whose sum is σ = 6177248518896. Its totient is φ = 530124930432.

The previous prime is 2012212022167. The next prime is 2012212022239. The reversal of 2012212022220 is 222202122102.

2012212022220 is a `hidden beast` number, since 20 + 1 + 221 + 202 + 2 + 220 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2012212022193 and 2012212022202.

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, 67328167 + ... + 67358046.

It is an arithmetic number, because the mean of its divisors is an integer number (85795118318).

Almost surely, 2^{2012212022220} is an apocalyptic number.

2012212022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012212022220 is an abundant number, since it is smaller than the sum of its proper divisors (4165036496676).

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

2012212022220 is a wasteful number, since it uses less digits than its factorization.

2012212022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134686311 (or 134686306 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2012212022220 its reverse (222202122102), we get a palindrome (2234414144322).

The spelling of 2012212022220 in words is "two trillion, twelve billion, two hundred twelve million, twenty-two thousand, two hundred twenty".