22011500212 has 12 divisors (see below), whose sum is σ = 41483212036. Its totient is φ = 10159153920.

The previous prime is 22011500197. The next prime is 22011500213. The reversal of 22011500212 is 21200511022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8367858576 + 13643641636 = 91476^2 + 116806^2 .

It is a super-2 number, since 2×22011500212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011500213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211648989 + ... + 211649092.

Almost surely, 2^22011500212 is an apocalyptic number.

It is an amenable number.

22011500212 is a deficient number, since it is larger than the sum of its proper divisors (19471711824).

22011500212 is a wasteful number, since it uses less digits than its factorization.

22011500212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423298098 (or 423298096 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The spelling of 22011500212 in words is "twenty-two billion, eleven million, five hundred thousand, two hundred twelve".