22312021340 has 48 divisors (see below), whose sum is σ = 53557335552. Its totient is φ = 7648623936.

The previous prime is 22312021337. The next prime is 22312021379. The reversal of 22312021340 is 4312021322.

It is a super-3 number, since 3×22312021340³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1741799 + ... + 1754561.

It is an arithmetic number, because the mean of its divisors is an integer number (1115777824).

Almost surely, 2^22312021340 is an apocalyptic number.

22312021340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22312021340 is an abundant number, since it is smaller than the sum of its proper divisors (31245314212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22312021340 is a wasteful number, since it uses less digits than its factorization.

22312021340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25266 (or 25264 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22312021340 its reverse (4312021322), we get a palindrome (26624042662).

The spelling of 22312021340 in words is "twenty-two billion, three hundred twelve million, twenty-one thousand, three hundred forty".