22035511212 has 192 divisors, whose sum is σ = 64157667840. Its totient is φ = 5786726400.

The previous prime is 22035511189. The next prime is 22035511249. The reversal of 22035511212 is 21211553022.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3681262 + ... + 3687242.

It is an arithmetic number, because the mean of its divisors is an integer number (334154520).

Almost surely, 2^22035511212 is an apocalyptic number.

22035511212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22035511212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32078833920).

22035511212 is an abundant number, since it is smaller than the sum of its proper divisors (42122156628).

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

22035511212 is a wasteful number, since it uses less digits than its factorization.

22035511212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6144 (or 6142 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 22035511212 in words is "twenty-two billion, thirty-five million, five hundred eleven thousand, two hundred twelve".