22101021212211 has 24 divisors (see below), whose sum is σ = 33648778725744. Its totient is φ = 14492472916320.

The previous prime is 22101021212183. The next prime is 22101021212267. The reversal of 22101021212211 is 11221212010122.

22101021212211 is a `hidden beast` number, since 2 + 210 + 10 + 21 + 212 + 211 = 666.

It is not a de Polignac number, because 22101021212211 - 2¹⁰ = 22101021211187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22101021212911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 745482756 + ... + 745512401.

It is an arithmetic number, because the mean of its divisors is an integer number (1402032446906).

Almost surely, 2^{22101021212211} is an apocalyptic number.

22101021212211 is a deficient number, since it is larger than the sum of its proper divisors (11547757513533).

22101021212211 is an equidigital number, since it uses as much as digits as its factorization.

22101021212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490995233 (or 1490995221 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22101021212211 its reverse (11221212010122), we get a palindrome (33322233222333).

The spelling of 22101021212211 in words is "twenty-two trillion, one hundred one billion, twenty-one million, two hundred twelve thousand, two hundred eleven".