22221212110101 has 24 divisors (see below), whose sum is σ = 34699790692320. Its totient is φ = 13655140297056.

The previous prime is 22221212110067. The next prime is 22221212110109. The reversal of 22221212110101 is 10101121212222.

22221212110101 is a `hidden beast` number, since 22 + 221 + 212 + 110 + 101 = 666.

It is not a de Polignac number, because 22221212110101 - 2⁹ = 22221212109589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221212110109) 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, 1756055955 + ... + 1756068608.

It is an arithmetic number, because the mean of its divisors is an integer number (1445824612180).

Almost surely, 2^{22221212110101} is an apocalyptic number.

It is an amenable number.

22221212110101 is a deficient number, since it is larger than the sum of its proper divisors (12478578582219).

22221212110101 is a wasteful number, since it uses less digits than its factorization.

22221212110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512124625 (or 3512124622 counting only the distinct ones).

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

Adding to 22221212110101 its reverse (10101121212222), we get a palindrome (32322333322323).

It can be divided in two parts, 222212121 and 10101, that added together give a palindrome (222222222).

The spelling of 22221212110101 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, one hundred ten thousand, one hundred one".