22212121102201 has 32 divisors (see below), whose sum is σ = 25330216268160. Its totient is φ = 19351368032256.

The previous prime is 22212121102183. The next prime is 22212121102217. The reversal of 22212121102201 is 10220112121222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22212121102201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212121102231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1879056 + ... + 6924961.

It is an arithmetic number, because the mean of its divisors is an integer number (791569258380).

Almost surely, 2^{22212121102201} is an apocalyptic number.

It is an amenable number.

22212121102201 is a deficient number, since it is larger than the sum of its proper divisors (3118095165959).

22212121102201 is a wasteful number, since it uses less digits than its factorization.

22212121102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8804233.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22212121102201 its reverse (10220112121222), we get a palindrome (32432233223423).

The spelling of 22212121102201 in words is "twenty-two trillion, two hundred twelve billion, one hundred twenty-one million, one hundred two thousand, two hundred one".