101111122012212 has 72 divisors (see below), whose sum is σ = 275248132288584. Its totient is φ = 31110980069376.

The previous prime is 101111122012151. The next prime is 101111122012237. The reversal of 101111122012212 is 212210221111101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7715983950756 + 93395138061456 = 2777766^2 + 9664116^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198755008 + ... + 199263080.

Almost surely, 2^{101111122012212} is an apocalyptic number.

101111122012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101111122012212 is an abundant number, since it is smaller than the sum of its proper divisors (174137010276372).

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

101111122012212 is a wasteful number, since it uses less digits than its factorization.

101111122012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933329 (or 933324 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 101111122012212 its reverse (212210221111101), we get a palindrome (313321343123313).

The spelling of 101111122012212 in words is "one hundred one trillion, one hundred eleven billion, one hundred twenty-two million, twelve thousand, two hundred twelve".