20325122215 has 8 divisors (see below), whose sum is σ = 24402396528. Its totient is φ = 16251931200.

The previous prime is 20325122203. The next prime is 20325122227. The reversal of 20325122215 is 51222152302.

It is an interprime number because it is at equal distance from previous prime (20325122203) and next prime (20325122227).

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

It is not a de Polignac number, because 20325122215 - 2⁵ = 20325122183 is a prime.

It is a super-2 number, since 2×20325122215² (a number of 21 digits) contains 22 as substring.

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 20325122215.

It is a congruent number.

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, 1009861 + ... + 1029790.

It is an arithmetic number, because the mean of its divisors is an integer number (3050299566).

Almost surely, 2^20325122215 is an apocalyptic number.

20325122215 is a deficient number, since it is larger than the sum of its proper divisors (4077274313).

20325122215 is a wasteful number, since it uses less digits than its factorization.

20325122215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041649.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 20325122215 its reverse (51222152302), we get a palindrome (71547274517).

The spelling of 20325122215 in words is "twenty billion, three hundred twenty-five million, one hundred twenty-two thousand, two hundred fifteen".