20222101102212 has 18 divisors (see below), whose sum is σ = 51116977786238. Its totient is φ = 6740700367392.

The previous prime is 20222101102187. The next prime is 20222101102241. The reversal of 20222101102212 is 21220110122202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15502536030276 + 4719565071936 = 3937326^2 + 2172456^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 280862515273 + ... + 280862515344.

Almost surely, 2^{20222101102212} is an apocalyptic number.

It is an amenable number.

20222101102212 is an abundant number, since it is smaller than the sum of its proper divisors (30894876684026).

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

20222101102212 is a wasteful number, since it uses less digits than its factorization.

20222101102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561725030627 (or 561725030622 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20222101102212 its reverse (21220110122202), we get a palindrome (41442211224414).

The spelling of 20222101102212 in words is "twenty trillion, two hundred twenty-two billion, one hundred one million, one hundred two thousand, two hundred twelve".