22212651340 has 48 divisors (see below), whose sum is σ = 52528702464. Its totient is φ = 7816766400.

The previous prime is 22212651323. The next prime is 22212651491. The reversal of 22212651340 is 4315621222.

It is a junction number, because it is equal to n+sod(n) for n = 22212651299 and 22212651308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1621674 + ... + 1635313.

It is an arithmetic number, because the mean of its divisors is an integer number (1094347968).

Almost surely, 2^22212651340 is an apocalyptic number.

22212651340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212651340 is an abundant number, since it is smaller than the sum of its proper divisors (30316051124).

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

22212651340 is a wasteful number, since it uses less digits than its factorization.

22212651340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257038 (or 3257036 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 22212651340 in words is "twenty-two billion, two hundred twelve million, six hundred fifty-one thousand, three hundred forty".