10202201122021 has 4 divisors (see below), whose sum is σ = 10645775083872. Its totient is φ = 9758627160172.

The previous prime is 10202201121863. The next prime is 10202201122063. The reversal of 10202201122021 is 12022110220201.

It is a happy number.

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 10202201122021 - 2³¹ = 10200053638373 is a prime.

It is a super-2 number, since 2×10202201122021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202201121986 and 10202201122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202201722021) 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, 221786980891 + ... + 221786980936.

It is an arithmetic number, because the mean of its divisors is an integer number (2661443770968).

Almost surely, 2^{10202201122021} is an apocalyptic number.

It is an amenable number.

10202201122021 is a deficient number, since it is larger than the sum of its proper divisors (443573961851).

10202201122021 is an equidigital number, since it uses as much as digits as its factorization.

10202201122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443573961850.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10202201122021 its reverse (12022110220201), we get a palindrome (22224311342222).

The spelling of 10202201122021 in words is "ten trillion, two hundred two billion, two hundred one million, one hundred twenty-two thousand, twenty-one".