22212330231021 has 32 divisors (see below), whose sum is σ = 35631727856640. Its totient is φ = 12023732098944.

The previous prime is 22212330231017. The next prime is 22212330231053. The reversal of 22212330231021 is 12013203321222.

It is not a de Polignac number, because 22212330231021 - 2² = 22212330231017 is a prime.

It is a super-2 number, since 2×22212330231021² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22212330230982 and 22212330231000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212330231121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2588001 + ... + 7149993.

It is an arithmetic number, because the mean of its divisors is an integer number (1113491495520).

Almost surely, 2^{22212330231021} is an apocalyptic number.

22212330231021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22212330231021 is a deficient number, since it is larger than the sum of its proper divisors (13419397625619).

22212330231021 is a wasteful number, since it uses less digits than its factorization.

22212330231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4574225.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 22212330231021 its reverse (12013203321222), we get a palindrome (34225533552243).

The spelling of 22212330231021 in words is "twenty-two trillion, two hundred twelve billion, three hundred thirty million, two hundred thirty-one thousand, twenty-one".