101020011221021 has 4 divisors (see below), whose sum is σ = 102442828280544. Its totient is φ = 99597194161500.

The previous prime is 101020011221011. The next prime is 101020011221027. The reversal of 101020011221021 is 120122110020101.

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 101020011221021 - 2³⁰ = 101018937479197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101020011220987 and 101020011221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020011221027) 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, 711408529655 + ... + 711408529796.

It is an arithmetic number, because the mean of its divisors is an integer number (25610707070136).

Almost surely, 2^{101020011221021} is an apocalyptic number.

It is an amenable number.

101020011221021 is a deficient number, since it is larger than the sum of its proper divisors (1422817059523).

101020011221021 is an equidigital number, since it uses as much as digits as its factorization.

101020011221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422817059522.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101020011221021 its reverse (120122110020101), we get a palindrome (221142121241122).

The spelling of 101020011221021 in words is "one hundred one trillion, twenty billion, eleven million, two hundred twenty-one thousand, twenty-one".