101211211320 has 32 divisors (see below), whose sum is σ = 303633634320. Its totient is φ = 26989656320.

The previous prime is 101211211247. The next prime is 101211211331. The reversal of 101211211320 is 23112112101.

It is a super-2 number, since 2×101211211320² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101211211320.

It is a congruent number.

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, 421713261 + ... + 421713500.

Almost surely, 2^101211211320 is an apocalyptic number.

101211211320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211211320 is an abundant number, since it is smaller than the sum of its proper divisors (202422423000).

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

101211211320 is a wasteful number, since it uses less digits than its factorization.

101211211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843426775 (or 843426771 counting only the distinct ones).

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

Adding to 101211211320 its reverse (23112112101), we get a palindrome (124323323421).

The spelling of 101211211320 in words is "one hundred one billion, two hundred eleven million, two hundred eleven thousand, three hundred twenty".