10202012122021 has 16 divisors (see below), whose sum is σ = 10741739270400. Its totient is φ = 9675263102400.

The previous prime is 10202012122019. The next prime is 10202012122063. The reversal of 10202012122021 is 12022121020201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10202012122021 - 2¹ = 10202012122019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10202012121986 and 10202012122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202012126021) 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, 2738595 + ... + 5282416.

It is an arithmetic number, because the mean of its divisors is an integer number (671358704400).

Almost surely, 2^{10202012122021} is an apocalyptic number.

It is an amenable number.

10202012122021 is a deficient number, since it is larger than the sum of its proper divisors (539727148379).

10202012122021 is an equidigital number, since it uses as much as digits as its factorization.

10202012122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8021820.

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

Adding to 10202012122021 its reverse (12022121020201), we get a palindrome (22224133142222).

The spelling of 10202012122021 in words is "ten trillion, two hundred two billion, twelve million, one hundred twenty-two thousand, twenty-one".