101000213100021 has 16 divisors (see below), whose sum is σ = 137040917728640. Its totient is φ = 66149174387520.

The previous prime is 101000213100019. The next prime is 101000213100047. The reversal of 101000213100021 is 120001312000101.

It is not a de Polignac number, because 101000213100021 - 2¹ = 101000213100019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101000213100071) 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, 335155426 + ... + 335456643.

It is an arithmetic number, because the mean of its divisors is an integer number (8565057358040).

Almost surely, 2^{101000213100021} is an apocalyptic number.

It is an amenable number.

101000213100021 is a deficient number, since it is larger than the sum of its proper divisors (36040704628619).

101000213100021 is an equidigital number, since it uses as much as digits as its factorization.

101000213100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670612956.

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

Adding to 101000213100021 its reverse (120001312000101), we get a palindrome (221001525100122).

The spelling of 101000213100021 in words is "one hundred one trillion, two hundred thirteen million, one hundred thousand, twenty-one".