211022223021 has 24 divisors (see below), whose sum is σ = 306071141376. Its totient is φ = 140099721120.

The previous prime is 211022223001. The next prime is 211022223043. The reversal of 211022223021 is 120322220112.

211022223021 is a `hidden beast` number, since 211 + 0 + 222 + 230 + 2 + 1 = 666.

It is not a de Polignac number, because 211022223021 - 2¹³ = 211022214829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211022222985 and 211022223003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211022223001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7970676 + ... + 7997106.

It is an arithmetic number, because the mean of its divisors is an integer number (12752964224).

Almost surely, 2^211022223021 is an apocalyptic number.

It is an amenable number.

211022223021 is a deficient number, since it is larger than the sum of its proper divisors (95048918355).

211022223021 is a wasteful number, since it uses less digits than its factorization.

211022223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30073 (or 30070 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 211022223021 its reverse (120322220112), we get a palindrome (331344443133).

The spelling of 211022223021 in words is "two hundred eleven billion, twenty-two million, two hundred twenty-three thousand, twenty-one".