22501221354001 has 4 divisors (see below), whose sum is σ = 24232084535092. Its totient is φ = 20770358172912.

The previous prime is 22501221353987. The next prime is 22501221354013. The reversal of 22501221354001 is 10045312210522.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14108467503376 + 8392753850625 = 3756124^2 + 2897025^2 .

It is a cyclic number.

It is not a de Polignac number, because 22501221354001 - 2²⁵ = 22501187799569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22501221354401) 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, 865431590526 + ... + 865431590551.

It is an arithmetic number, because the mean of its divisors is an integer number (6058021133773).

Almost surely, 2^{22501221354001} is an apocalyptic number.

It is an amenable number.

22501221354001 is a deficient number, since it is larger than the sum of its proper divisors (1730863181091).

22501221354001 is a wasteful number, since it uses less digits than its factorization.

22501221354001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730863181090.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 22501221354001 its reverse (10045312210522), we get a palindrome (32546533564523).

The spelling of 22501221354001 in words is "twenty-two trillion, five hundred one billion, two hundred twenty-one million, three hundred fifty-four thousand, one".