22251122251001 has 8 divisors (see below), whose sum is σ = 25488583459584. Its totient is φ = 19028343407040.

The previous prime is 22251122250997. The next prime is 22251122251013. The reversal of 22251122251001 is 10015222115222.

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 22251122251001 - 2² = 22251122250997 is a prime.

It is a super-2 number, since 2×22251122251001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22251122251021) 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, 3670587905 + ... + 3670593966.

It is an arithmetic number, because the mean of its divisors is an integer number (3186072932448).

Almost surely, 2^{22251122251001} is an apocalyptic number.

It is an amenable number.

22251122251001 is a deficient number, since it is larger than the sum of its proper divisors (3237461208583).

22251122251001 is an equidigital number, since it uses as much as digits as its factorization.

22251122251001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7341182311.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 22251122251001 its reverse (10015222115222), we get a palindrome (32266344366223).

The spelling of 22251122251001 in words is "twenty-two trillion, two hundred fifty-one billion, one hundred twenty-two million, two hundred fifty-one thousand, one".