201122134212 has 48 divisors (see below), whose sum is σ = 472881386432. Its totient is φ = 66528190080.

The previous prime is 201122134189. The next prime is 201122134249. The reversal of 201122134212 is 212431221102.

It is a happy number.

It is a super-2 number, since 2×201122134212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1215138 + ... + 1370694.

Almost surely, 2^201122134212 is an apocalyptic number.

It is an amenable number.

201122134212 is an abundant number, since it is smaller than the sum of its proper divisors (271759252220).

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

201122134212 is a wasteful number, since it uses less digits than its factorization.

201122134212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156388 (or 156386 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 201122134212 its reverse (212431221102), we get a palindrome (413553355314).

The spelling of 201122134212 in words is "two hundred one billion, one hundred twenty-two million, one hundred thirty-four thousand, two hundred twelve".