2102020222212 has 72 divisors (see below), whose sum is σ = 5320805072856. Its totient is φ = 699702603264.

The previous prime is 2102020222163. The next prime is 2102020222213. The reversal of 2102020222212 is 2122220202012.

2102020222212 is a `hidden beast` number, since 210 + 2 + 0 + 20 + 222 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 527938840836 + 1574081381376 = 726594^2 + 1254624^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2102020222213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 242247618 + ... + 242256294.

Almost surely, 2^{2102020222212} is an apocalyptic number.

It is an amenable number.

2102020222212 is an abundant number, since it is smaller than the sum of its proper divisors (3218784850644).

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

2102020222212 is a wasteful number, since it uses less digits than its factorization.

2102020222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17237 (or 17232 counting only the distinct ones).

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

Adding to 2102020222212 its reverse (2122220202012), we get a palindrome (4224240424224).

It can be divided in two parts, 2102020 and 222212, that added together give a palindrome (2324232).

The spelling of 2102020222212 in words is "two trillion, one hundred two billion, twenty million, two hundred twenty-two thousand, two hundred twelve".