10202202021 has 32 divisors (see below), whose sum is σ = 15333912576. Its totient is φ = 5977584000.

The previous prime is 10202202013. The next prime is 10202202029. The reversal of 10202202021 is 12020220201.

It is an interprime number because it is at equal distance from previous prime (10202202013) and next prime (10202202029).

It is not a de Polignac number, because 10202202021 - 2³ = 10202202013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10202201988 and 10202202006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202202029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1117686 + ... + 1126776.

It is an arithmetic number, because the mean of its divisors is an integer number (479184768).

Almost surely, 2^10202202021 is an apocalyptic number.

10202202021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10202202021 is a deficient number, since it is larger than the sum of its proper divisors (5131710555).

10202202021 is a wasteful number, since it uses less digits than its factorization.

10202202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10233.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 10202202021 its reverse (12020220201), we get a palindrome (22222422222).

The spelling of 10202202021 in words is "ten billion, two hundred two million, two hundred two thousand, twenty-one".