101211111312 has 40 divisors (see below), whose sum is σ = 261495480480. Its totient is φ = 33732721920.

The previous prime is 101211111307. The next prime is 101211111361. The reversal of 101211111312 is 213111112101.

It is a super-2 number, since 2×101211111312² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101211111291 and 101211111300.

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, 256012 + ... + 517652.

It is an arithmetic number, because the mean of its divisors is an integer number (6537387012).

Almost surely, 2^101211111312 is an apocalyptic number.

101211111312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101211111312 is an abundant number, since it is smaller than the sum of its proper divisors (160284369168).

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

101211111312 is a wasteful number, since it uses less digits than its factorization.

101211111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269711 (or 269705 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 101211111312 its reverse (213111112101), we get a palindrome (314322223413).

The spelling of 101211111312 in words is "one hundred one billion, two hundred eleven million, one hundred eleven thousand, three hundred twelve".