10202211102021 has 4 divisors (see below), whose sum is σ = 13602948136032. Its totient is φ = 6801474068012.

The previous prime is 10202211102011. The next prime is 10202211102049. The reversal of 10202211102021 is 12020111220201.

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 10202211102021 - 2²³ = 10202202713413 is a prime.

It is a super-2 number, since 2×10202211102021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202211102011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700368517001 + ... + 1700368517006.

It is an arithmetic number, because the mean of its divisors is an integer number (3400737034008).

Almost surely, 2^{10202211102021} is an apocalyptic number.

It is an amenable number.

10202211102021 is a deficient number, since it is larger than the sum of its proper divisors (3400737034011).

10202211102021 is an equidigital number, since it uses as much as digits as its factorization.

10202211102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400737034010.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10202211102021 its reverse (12020111220201), we get a palindrome (22222322322222).

The spelling of 10202211102021 in words is "ten trillion, two hundred two billion, two hundred eleven million, one hundred two thousand, twenty-one".