101311220112 has 40 divisors (see below), whose sum is σ = 277115986656. Its totient is φ = 31783911936.

The previous prime is 101311220099. The next prime is 101311220117. The reversal of 101311220112 is 211022113101.

It is a super-2 number, since 2×101311220112² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101311220091 and 101311220100.

It is not an unprimeable number, because it can be changed into a prime (101311220117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62077138 + ... + 62078769.

Almost surely, 2^101311220112 is an apocalyptic number.

101311220112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101311220112 is an abundant number, since it is smaller than the sum of its proper divisors (175804766544).

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

101311220112 is a wasteful number, since it uses less digits than its factorization.

101311220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124155935 (or 124155929 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 101311220112 its reverse (211022113101), we get a palindrome (312333333213).

The spelling of 101311220112 in words is "one hundred one billion, three hundred eleven million, two hundred twenty thousand, one hundred twelve".