22101101201021 has 4 divisors (see below), whose sum is σ = 22269811897344. Its totient is φ = 21932390504700.

The previous prime is 22101101201017. The next prime is 22101101201041. The reversal of 22101101201021 is 12010210110122.

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 22101101201021 - 2² = 22101101201017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101101200987 and 22101101201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101101201041) 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, 84355347965 + ... + 84355348226.

It is an arithmetic number, because the mean of its divisors is an integer number (5567452974336).

Almost surely, 2^{22101101201021} is an apocalyptic number.

It is an amenable number.

22101101201021 is a deficient number, since it is larger than the sum of its proper divisors (168710696323).

22101101201021 is a wasteful number, since it uses less digits than its factorization.

22101101201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168710696322.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22101101201021 its reverse (12010210110122), we get a palindrome (34111311311143).

The spelling of 22101101201021 in words is "twenty-two trillion, one hundred one billion, one hundred one million, two hundred one thousand, twenty-one".