10202101021 has 8 divisors (see below), whose sum is σ = 11682728064. Its totient is φ = 8727270000.

The previous prime is 10202100991. The next prime is 10202101087. The reversal of 10202101021 is 12010120201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10202101021 - 2⁵ = 10202100989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10202100989 and 10202101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202101121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445230 + ... + 1452271.

It is an arithmetic number, because the mean of its divisors is an integer number (1460341008).

Almost surely, 2^10202101021 is an apocalyptic number.

It is an amenable number.

10202101021 is a deficient number, since it is larger than the sum of its proper divisors (1480627043).

10202101021 is an equidigital number, since it uses as much as digits as its factorization.

10202101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898011.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10202101021 its reverse (12010120201), we get a palindrome (22212221222).

The spelling of 10202101021 in words is "ten billion, two hundred two million, one hundred one thousand, twenty-one".