22221020203235 has 16 divisors (see below), whose sum is σ = 30489172214016. Its totient is φ = 15229955886048.

The previous prime is 22221020203183. The next prime is 22221020203243. The reversal of 22221020203235 is 53230202012222.

It is a cyclic number.

It is not a de Polignac number, because 22221020203235 - 2²⁴ = 22221003426019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152324189 + ... + 152469998.

It is an arithmetic number, because the mean of its divisors is an integer number (1905573263376).

Almost surely, 2^{22221020203235} is an apocalyptic number.

22221020203235 is a deficient number, since it is larger than the sum of its proper divisors (8268152010781).

22221020203235 is a wasteful number, since it uses less digits than its factorization.

22221020203235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304796282.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 22221020203235 its reverse (53230202012222), we get a palindrome (75451222215457).

The spelling of 22221020203235 in words is "twenty-two trillion, two hundred twenty-one billion, twenty million, two hundred three thousand, two hundred thirty-five".