22251215110001 has 8 divisors (see below), whose sum is σ = 22259646163560. Its totient is φ = 22242784612608.

The previous prime is 22251215109979. The next prime is 22251215110051. The reversal of 22251215110001 is 10001151215222.

It can be written as a sum of positive squares in 4 ways, for example, as 11468687037025 + 10782528072976 = 3386545^2 + 3283676^2 .

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 22251215110001 - 2¹⁴ = 22251215093617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22251215110051) 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, 91113065 + ... + 91356953.

It is an arithmetic number, because the mean of its divisors is an integer number (2782455770445).

Almost surely, 2^{22251215110001} is an apocalyptic number.

It is an amenable number.

22251215110001 is a deficient number, since it is larger than the sum of its proper divisors (8431053559).

22251215110001 is a wasteful number, since it uses less digits than its factorization.

22251215110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278083.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 22251215110001 its reverse (10001151215222), we get a palindrome (32252366325223).

The spelling of 22251215110001 in words is "twenty-two trillion, two hundred fifty-one billion, two hundred fifteen million, one hundred ten thousand, one".