22202111212 has 24 divisors (see below), whose sum is σ = 38960409600. Its totient is φ = 11070595536.

The previous prime is 22202111203. The next prime is 22202111357. The reversal of 22202111212 is 21211120222.

It is a happy number.

It is a super-2 number, since 2×22202111212² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5440989 + ... + 5445067.

It is an arithmetic number, because the mean of its divisors is an integer number (1623350400).

Almost surely, 2^22202111212 is an apocalyptic number.

It is an amenable number.

22202111212 is a deficient number, since it is larger than the sum of its proper divisors (16758298388).

22202111212 is a wasteful number, since it uses less digits than its factorization.

22202111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7485 (or 7483 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22202111212 its reverse (21211120222), we get a palindrome (43413231434).

The spelling of 22202111212 in words is "twenty-two billion, two hundred two million, one hundred eleven thousand, two hundred twelve".