22101210101 has 2 divisors, whose sum is σ = 22101210102. Its totient is φ = 22101210100.

The previous prime is 22101210083. The next prime is 22101210143. The reversal of 22101210101 is 10101210122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19117210225 + 2983999876 = 138265^2 + 54626^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101210101 - 2²² = 22097015797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22101210161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050605050 + 11050605051.

It is an arithmetic number, because the mean of its divisors is an integer number (11050605051).

Almost surely, 2^22101210101 is an apocalyptic number.

It is an amenable number.

22101210101 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101210101 is an equidigital number, since it uses as much as digits as its factorization.

22101210101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22101210101 its reverse (10101210122), we get a palindrome (32202420223).

The spelling of 22101210101 in words is "twenty-two billion, one hundred one million, two hundred ten thousand, one hundred one".