22212214040 has 32 divisors (see below), whose sum is σ = 50055507360. Its totient is φ = 8871014400.

The previous prime is 22212214019. The next prime is 22212214049. The reversal of 22212214040 is 4041221222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212214049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407516 + ... + 458795.

It is an arithmetic number, because the mean of its divisors is an integer number (1564234605).

Almost surely, 2^22212214040 is an apocalyptic number.

22212214040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212214040 is an abundant number, since it is smaller than the sum of its proper divisors (27843293320).

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

22212214040 is a wasteful number, since it uses less digits than its factorization.

22212214040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866963 (or 866959 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22212214040 its reverse (4041221222), we get a palindrome (26253435262).

The spelling of 22212214040 in words is "twenty-two billion, two hundred twelve million, two hundred fourteen thousand, forty".