22025100081 has 8 divisors (see below), whose sum is σ = 30643617600. Its totient is φ = 14044991312.

The previous prime is 22025100073. The next prime is 22025100103. The reversal of 22025100081 is 18000152022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22025100081 - 2³ = 22025100073 is a prime.

It is a super-2 number, since 2×22025100081² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22025100281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159602106 + ... + 159602243.

It is an arithmetic number, because the mean of its divisors is an integer number (3830452200).

Almost surely, 2^22025100081 is an apocalyptic number.

It is an amenable number.

22025100081 is a deficient number, since it is larger than the sum of its proper divisors (8618517519).

22025100081 is a wasteful number, since it uses less digits than its factorization.

22025100081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319204375.

The product of its (nonzero) digits is 320, while the sum is 21.

The spelling of 22025100081 in words is "twenty-two billion, twenty-five million, one hundred thousand, eighty-one".