22021021122201 has 144 divisors (see below), whose sum is σ = 33945500160000. Its totient is φ = 13737666096000.

The previous prime is 22021021122197. The next prime is 22021021122229. The reversal of 22021021122201 is 10222112012022.

It is a happy number.

22021021122201 is a `hidden beast` number, since 2 + 20 + 210 + 211 + 2 + 220 + 1 = 666.

It is not a de Polignac number, because 22021021122201 - 2² = 22021021122197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22021021122301) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 33415813210 + ... + 33415813868.

It is an arithmetic number, because the mean of its divisors is an integer number (235732640000).

Almost surely, 2^{22021021122201} is an apocalyptic number.

It is an amenable number.

22021021122201 is a deficient number, since it is larger than the sum of its proper divisors (11924479037799).

22021021122201 is a wasteful number, since it uses less digits than its factorization.

22021021122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22021021122201 its reverse (10222112012022), we get a palindrome (32243133134223).

The spelling of 22021021122201 in words is "twenty-two trillion, twenty-one billion, twenty-one million, one hundred twenty-two thousand, two hundred one".