22101022001000 has 32 divisors (see below), whose sum is σ = 51716391484680. Its totient is φ = 8840408800000.

The previous prime is 22101022000961. The next prime is 22101022001021. The reversal of 22101022001000 is 10022010122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10160832011236 + 11940189989764 = 3187606^2 + 3455458^2 .

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, 11050510001 + ... + 11050512000.

Almost surely, 2^{22101022001000} is an apocalyptic number.

22101022001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101022001000 is an abundant number, since it is smaller than the sum of its proper divisors (29615369483680).

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

22101022001000 is a wasteful number, since it uses less digits than its factorization.

22101022001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22101022022 (or 22101022008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22101022001000 its reverse (10022010122), we get a palindrome (22111044011122).

The spelling of 22101022001000 in words is "twenty-two trillion, one hundred one billion, twenty-two million, one thousand".