10210101220021 has 16 divisors (see below), whose sum is σ = 10901349283968. Its totient is φ = 9529148736000.

The previous prime is 10210101219947. The next prime is 10210101220031. The reversal of 10210101220021 is 12002210101201.

10210101220021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10210101220021 - 2²¹ = 10210099122869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210101219983 and 10210101220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210101220031) 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, 2017120 + ... + 4948633.

It is an arithmetic number, because the mean of its divisors is an integer number (681334330248).

Almost surely, 2^{10210101220021} is an apocalyptic number.

It is an amenable number.

10210101220021 is a deficient number, since it is larger than the sum of its proper divisors (691248063947).

10210101220021 is a wasteful number, since it uses less digits than its factorization.

10210101220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6966492.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10210101220021 its reverse (12002210101201), we get a palindrome (22212311321222).

The spelling of 10210101220021 in words is "ten trillion, two hundred ten billion, one hundred one million, two hundred twenty thousand, twenty-one".