101201002111021 has 4 divisors (see below), whose sum is σ = 106527370643200. Its totient is φ = 95874633578844.

The previous prime is 101201002110979. The next prime is 101201002111037. The reversal of 101201002111021 is 120111200102101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101201002111021 - 2¹³ = 101201002102829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101201002110992 and 101201002111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201002111061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2663184266061 + ... + 2663184266098.

It is an arithmetic number, because the mean of its divisors is an integer number (26631842660800).

Almost surely, 2^{101201002111021} is an apocalyptic number.

It is an amenable number.

101201002111021 is a deficient number, since it is larger than the sum of its proper divisors (5326368532179).

101201002111021 is an equidigital number, since it uses as much as digits as its factorization.

101201002111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326368532178.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101201002111021 its reverse (120111200102101), we get a palindrome (221312202213122).

The spelling of 101201002111021 in words is "one hundred one trillion, two hundred one billion, two million, one hundred eleven thousand, twenty-one".