22101102100201 has 4 divisors (see below), whose sum is σ = 22303864504900. Its totient is φ = 21898339695504.

The previous prime is 22101102100199. The next prime is 22101102100229. The reversal of 22101102100201 is 10200120110122.

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 17286061837801 + 4815040262400 = 4157651^2 + 2194320^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101102100201 - 2¹ = 22101102100199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22101102100601) 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, 101381202186 + ... + 101381202403.

It is an arithmetic number, because the mean of its divisors is an integer number (5575966126225).

Almost surely, 2^{22101102100201} is an apocalyptic number.

It is an amenable number.

22101102100201 is a deficient number, since it is larger than the sum of its proper divisors (202762404699).

22101102100201 is a wasteful number, since it uses less digits than its factorization.

22101102100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202762404698.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22101102100201 its reverse (10200120110122), we get a palindrome (32301222210323).

The spelling of 22101102100201 in words is "twenty-two trillion, one hundred one billion, one hundred two million, one hundred thousand, two hundred one".