11222321122021 has 4 divisors (see below), whose sum is σ = 11222439169312. Its totient is φ = 11222203074732.

The previous prime is 11222321122009. The next prime is 11222321122031. The reversal of 11222321122021 is 12022112322211.

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 11222321122021 - 2¹⁷ = 11222320990949 is a prime.

It is a super-2 number, since 2×11222321122021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222321121983 and 11222321122001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222321122031) 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, 58880931 + ... + 59071216.

It is an arithmetic number, because the mean of its divisors is an integer number (2805609792328).

Almost surely, 2^{11222321122021} is an apocalyptic number.

It is an amenable number.

11222321122021 is a deficient number, since it is larger than the sum of its proper divisors (118047291).

11222321122021 is an equidigital number, since it uses as much as digits as its factorization.

11222321122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118047290.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11222321122021 its reverse (12022112322211), we get a palindrome (23244433444232).

The spelling of 11222321122021 in words is "eleven trillion, two hundred twenty-two billion, three hundred twenty-one million, one hundred twenty-two thousand, twenty-one".