101322002021 has 4 divisors (see below), whose sum is σ = 102749072544. Its totient is φ = 99894931500.

The previous prime is 101322001999. The next prime is 101322002059. The reversal of 101322002021 is 120200223101.

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 101322002021 - 2¹⁴ = 101321985637 is a prime.

It is a super-2 number, since 2×101322002021² (a number of 23 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 = 101322001987 and 101322002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101322002081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713535155 + ... + 713535296.

It is an arithmetic number, because the mean of its divisors is an integer number (25687268136).

Almost surely, 2^101322002021 is an apocalyptic number.

It is an amenable number.

101322002021 is a deficient number, since it is larger than the sum of its proper divisors (1427070523).

101322002021 is an equidigital number, since it uses as much as digits as its factorization.

101322002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427070522.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 101322002021 its reverse (120200223101), we get a palindrome (221522225122).

The spelling of 101322002021 in words is "one hundred one billion, three hundred twenty-two million, two thousand, twenty-one".