22051952999 has 4 divisors (see below), whose sum is σ = 22055453520. Its totient is φ = 22048452480.

The previous prime is 22051952987. The next prime is 22051953067. The reversal of 22051952999 is 99925915022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22051952999 - 2³² = 17756985703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22051952999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22051952929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740794 + ... + 1753415.

It is an arithmetic number, because the mean of its divisors is an integer number (5513863380).

Almost surely, 2^22051952999 is an apocalyptic number.

22051952999 is a deficient number, since it is larger than the sum of its proper divisors (3500521).

22051952999 is an equidigital number, since it uses as much as digits as its factorization.

22051952999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500520.

The product of its (nonzero) digits is 1312200, while the sum is 53.

The spelling of 22051952999 in words is "twenty-two billion, fifty-one million, nine hundred fifty-two thousand, nine hundred ninety-nine".