22221110100029 has 2 divisors, whose sum is σ = 22221110100030. Its totient is φ = 22221110100028.

The previous prime is 22221110099999. The next prime is 22221110100041. The reversal of 22221110100029 is 92000101112222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19759891944100 + 2461218155929 = 4445210^2 + 1568827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22221110100029 is a prime.

It is a super-2 number, since 2×22221110100029² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22221110099977 and 22221110100013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221110100229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110555050014 + 11110555050015.

It is an arithmetic number, because the mean of its divisors is an integer number (11110555050015).

Almost surely, 2^{22221110100029} is an apocalyptic number.

It is an amenable number.

22221110100029 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221110100029 is an equidigital number, since it uses as much as digits as its factorization.

22221110100029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 22221110100029 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred ten million, one hundred thousand, twenty-nine".