101310212121 has 16 divisors (see below), whose sum is σ = 135390181248. Its totient is φ = 67385260800.

The previous prime is 101310212071. The next prime is 101310212123. The reversal of 101310212121 is 121212013101.

It is not a de Polignac number, because 101310212121 - 2⁹ = 101310211609 is a prime.

It is a super-3 number, since 3×101310212121³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101310212121.

It is not an unprimeable number, because it can be changed into a prime (101310212123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11802051 + ... + 11810631.

It is an arithmetic number, because the mean of its divisors is an integer number (8461886328).

Almost surely, 2^101310212121 is an apocalyptic number.

It is an amenable number.

101310212121 is a deficient number, since it is larger than the sum of its proper divisors (34079969127).

101310212121 is an equidigital number, since it uses as much as digits as its factorization.

101310212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17152.

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

Adding to 101310212121 its reverse (121212013101), we get a palindrome (222522225222).

The spelling of 101310212121 in words is "one hundred one billion, three hundred ten million, two hundred twelve thousand, one hundred twenty-one".