201122021011312 has 40 divisors (see below), whose sum is σ = 406663170953760. Its totient is φ = 96177695412480.

The previous prime is 201122021011283. The next prime is 201122021011339. The reversal of 201122021011312 is 213110120221102.

It is a super-2 number, since 2×201122021011312² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201122021011312.

It is a congruent number.

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, 28331739 + ... + 34712122.

It is an arithmetic number, because the mean of its divisors is an integer number (10166579273844).

Almost surely, 2^{201122021011312} is an apocalyptic number.

It is an amenable number.

201122021011312 is an abundant number, since it is smaller than the sum of its proper divisors (205541149942448).

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

201122021011312 is a wasteful number, since it uses less digits than its factorization.

201122021011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63052561 (or 63052555 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 201122021011312 its reverse (213110120221102), we get a palindrome (414232141232414).

The spelling of 201122021011312 in words is "two hundred one trillion, one hundred twenty-two billion, twenty-one million, eleven thousand, three hundred twelve".