22401111620 has 24 divisors (see below), whose sum is σ = 47047281624. Its totient is φ = 8959502336.

The previous prime is 22401111589. The next prime is 22401111641. The reversal of 22401111620 is 2611110422.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2886697984 + 19514413636 = 53728^2 + 139694^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22401111592 and 22401111601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154982 + ... + 262338.

It is an arithmetic number, because the mean of its divisors is an integer number (1960303401).

Almost surely, 2^22401111620 is an apocalyptic number.

22401111620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22401111620 is an abundant number, since it is smaller than the sum of its proper divisors (24646170004).

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

22401111620 is a wasteful number, since it uses less digits than its factorization.

22401111620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117799 (or 117797 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The spelling of 22401111620 in words is "twenty-two billion, four hundred one million, one hundred eleven thousand, six hundred twenty".