22202120101212 has 18 divisors (see below), whose sum is σ = 56122025811488. Its totient is φ = 7400706700392.

The previous prime is 22202120101177. The next prime is 22202120101223. The reversal of 22202120101212 is 21210102120222.

It is a happy number.

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308362779148 + ... + 308362779219.

Almost surely, 2^{22202120101212} is an apocalyptic number.

It is an amenable number.

22202120101212 is an abundant number, since it is smaller than the sum of its proper divisors (33919905710276).

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

22202120101212 is a wasteful number, since it uses less digits than its factorization.

22202120101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616725558377 (or 616725558372 counting only the distinct ones).

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

Adding to 22202120101212 its reverse (21210102120222), we get a palindrome (43412222221434).

The spelling of 22202120101212 in words is "twenty-two trillion, two hundred two billion, one hundred twenty million, one hundred one thousand, two hundred twelve".