22021112303211 has 32 divisors (see below), whose sum is σ = 35015574924288. Its totient is φ = 12036164849280.

The previous prime is 22021112303191. The next prime is 22021112303213. The reversal of 22021112303211 is 11230321112022.

It is not a de Polignac number, because 22021112303211 - 2¹⁰ = 22021112302187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22021112303213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28120905 + ... + 28893381.

It is an arithmetic number, because the mean of its divisors is an integer number (1094236716384).

Almost surely, 2^{22021112303211} is an apocalyptic number.

22021112303211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22021112303211 is a deficient number, since it is larger than the sum of its proper divisors (12994462621077).

22021112303211 is a wasteful number, since it uses less digits than its factorization.

22021112303211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831531.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 22021112303211 its reverse (11230321112022), we get a palindrome (33251433415233).

The spelling of 22021112303211 in words is "twenty-two trillion, twenty-one billion, one hundred twelve million, three hundred three thousand, two hundred eleven".