10202222022121 has 4 divisors (see below), whose sum is σ = 10645796892672. Its totient is φ = 9758647151572.

The previous prime is 10202222022119. The next prime is 10202222022131. The reversal of 10202222022121 is 12122022220201.

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 10202222022121 - 2¹ = 10202222022119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10202222022131) 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, 221787435241 + ... + 221787435286.

It is an arithmetic number, because the mean of its divisors is an integer number (2661449223168).

Almost surely, 2^{10202222022121} is an apocalyptic number.

It is an amenable number.

10202222022121 is a deficient number, since it is larger than the sum of its proper divisors (443574870551).

10202222022121 is an equidigital number, since it uses as much as digits as its factorization.

10202222022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443574870550.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10202222022121 its reverse (12122022220201), we get a palindrome (22324244242322).

The spelling of 10202222022121 in words is "ten trillion, two hundred two billion, two hundred twenty-two million, twenty-two thousand, one hundred twenty-one".