101200001211021 has 8 divisors (see below), whose sum is σ = 134933383162720. Its totient is φ = 67466643366672.

The previous prime is 101200001210981. The next prime is 101200001211061. The reversal of 101200001211021 is 120112100002101.

It is an interprime number because it is at equal distance from previous prime (101200001210981) and next prime (101200001211061).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101200001211021 - 2¹⁴ = 101200001194637 is a prime.

It is a super-2 number, since 2×101200001211021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101200001210988 and 101200001211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200001211061) 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, 9435006 + ... + 17071008.

It is an arithmetic number, because the mean of its divisors is an integer number (16866672895340).

Almost surely, 2^{101200001211021} is an apocalyptic number.

It is an amenable number.

101200001211021 is a deficient number, since it is larger than the sum of its proper divisors (33733381951699).

101200001211021 is an equidigital number, since it uses as much as digits as its factorization.

101200001211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12053675.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101200001211021 its reverse (120112100002101), we get a palindrome (221312101213122).

The spelling of 101200001211021 in words is "one hundred one trillion, two hundred billion, one million, two hundred eleven thousand, twenty-one".