22222431000 has 960 divisors, whose sum is σ = 98770557600. Its totient is φ = 4608576000.

The previous prime is 22222430987. The next prime is 22222431031. The reversal of 22222431000 is 13422222.

It is a super-2 number, since 2×22222431000² (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 an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 43658746 + ... + 43659254.

Almost surely, 2^22222431000 is an apocalyptic number.

22222431000 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 22222431000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49385278800).

22222431000 is an abundant number, since it is smaller than the sum of its proper divisors (76548126600).

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

22222431000 is a wasteful number, since it uses less digits than its factorization.

22222431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22222431000 its reverse (13422222), we get a palindrome (22235853222).

The spelling of 22222431000 in words is "twenty-two billion, two hundred twenty-two million, four hundred thirty-one thousand".