22202020210212 has 144 divisors (see below), whose sum is σ = 61068578079600. Its totient is φ = 6772701413376.

The previous prime is 22202020210207. The next prime is 22202020210241. The reversal of 22202020210212 is 21201202020222.

22202020210212 is a `hidden beast` number, since 2 + 220 + 2 + 0 + 20 + 210 + 212 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 3797096520996 + 18404923689216 = 1948614^2 + 4290096^2 .

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

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 34759068 + ... + 35392044.

It is an arithmetic number, because the mean of its divisors is an integer number (424087347775).

Almost surely, 2^{22202020210212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22202020210212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30534289039800).

22202020210212 is an abundant number, since it is smaller than the sum of its proper divisors (38866557869388).

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

22202020210212 is a wasteful number, since it uses less digits than its factorization.

22202020210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634590 (or 634585 counting only the distinct ones).

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

Adding to 22202020210212 its reverse (21201202020222), we get a palindrome (43403222230434).

The spelling of 22202020210212 in words is "twenty-two trillion, two hundred two billion, twenty million, two hundred ten thousand, two hundred twelve".