22000620312 has 192 divisors, whose sum is σ = 68992560000. Its totient is φ = 6259461120.

The previous prime is 22000620311. The next prime is 22000620331. The reversal of 22000620312 is 21302600022.

It is a super-2 number, since 2×22000620312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000620311) 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, 6285939 + ... + 6289437.

It is an arithmetic number, because the mean of its divisors is an integer number (359336250).

Almost surely, 2^22000620312 is an apocalyptic number.

22000620312 is a gapful number since it is divisible by the number (22) 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 22000620312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34496280000).

22000620312 is an abundant number, since it is smaller than the sum of its proper divisors (46991939688).

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

22000620312 is a wasteful number, since it uses less digits than its factorization.

22000620312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006 (or 3999 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The spelling of 22000620312 in words is "twenty-two billion, six hundred twenty thousand, three hundred twelve".