22612678020 has 144 divisors (see below), whose sum is σ = 70541872128. Its totient is φ = 5859060480.

The previous prime is 22612678009. The next prime is 22612678021. The reversal of 22612678020 is 2087621622.

It is a super-2 number, since 2×22612678020² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22612678021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6065397 + ... + 6069123.

It is an arithmetic number, because the mean of its divisors is an integer number (489874112).

Almost surely, 2^22612678020 is an apocalyptic number.

22612678020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22612678020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35270936064).

22612678020 is an abundant number, since it is smaller than the sum of its proper divisors (47929194108).

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

22612678020 is a wasteful number, since it uses less digits than its factorization.

22612678020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4690 (or 4685 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 22612678020 in words is "twenty-two billion, six hundred twelve million, six hundred seventy-eight thousand, twenty".