22215021255001 has 4 divisors (see below), whose sum is σ = 22931634843904. Its totient is φ = 21498407666100.

The previous prime is 22215021254999. The next prime is 22215021255059. The reversal of 22215021255001 is 10055212051222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22215021255001 - 2¹ = 22215021254999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22215021255071) 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, 358306794405 + ... + 358306794466.

It is an arithmetic number, because the mean of its divisors is an integer number (5732908710976).

Almost surely, 2^{22215021255001} is an apocalyptic number.

It is an amenable number.

22215021255001 is a deficient number, since it is larger than the sum of its proper divisors (716613588903).

22215021255001 is an equidigital number, since it uses as much as digits as its factorization.

22215021255001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716613588902.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 22215021255001 in words is "twenty-two trillion, two hundred fifteen billion, twenty-one million, two hundred fifty-five thousand, one".