22110102122221 has 16 divisors (see below), whose sum is σ = 22781899008000. Its totient is φ = 21445542675648.

The previous prime is 22110102122219. The next prime is 22110102122257. The reversal of 22110102122221 is 12222120101122.

It is a cyclic number.

It is not a de Polignac number, because 22110102122221 - 2¹ = 22110102122219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110102122021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24981615 + ... + 25851523.

It is an arithmetic number, because the mean of its divisors is an integer number (1423868688000).

Almost surely, 2^{22110102122221} is an apocalyptic number.

It is an amenable number.

22110102122221 is a deficient number, since it is larger than the sum of its proper divisors (671796885779).

22110102122221 is a wasteful number, since it uses less digits than its factorization.

22110102122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874068.

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

Adding to 22110102122221 its reverse (12222120101122), we get a palindrome (34332222223343).

The spelling of 22110102122221 in words is "twenty-two trillion, one hundred ten billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty-one".