133111001212 has 12 divisors (see below), whose sum is σ = 266222002480. Its totient is φ = 57047571936.

The previous prime is 133111001209. The next prime is 133111001213. The reversal of 133111001212 is 212100111331.

It is a happy number.

133111001212 is an admirable number.

It is a super-2 number, since 2×133111001212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133111001213) 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, 2376982137 + ... + 2376982192.

Almost surely, 2^133111001212 is an apocalyptic number.

It is an amenable number.

133111001212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133111001212 is a wasteful number, since it uses less digits than its factorization.

133111001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753964340 (or 4753964338 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 133111001212 its reverse (212100111331), we get a palindrome (345211112543).

The spelling of 133111001212 in words is "one hundred thirty-three billion, one hundred eleven million, one thousand, two hundred twelve".