110021212121129 has 2 divisors, whose sum is σ = 110021212121130. Its totient is φ = 110021212121128.

The previous prime is 110021212121113. The next prime is 110021212121153. The reversal of 110021212121129 is 921121212120011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103479756250000 + 6541455871129 = 10172500^2 + 2557627^2 .

It is a cyclic number.

It is not a de Polignac number, because 110021212121129 - 2⁴ = 110021212121113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110021212121098 and 110021212121107.

It is not a weakly prime, because it can be changed into another prime (110021212121189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55010606060564 + 55010606060565.

It is an arithmetic number, because the mean of its divisors is an integer number (55010606060565).

Almost surely, 2^{110021212121129} is an apocalyptic number.

It is an amenable number.

110021212121129 is a deficient number, since it is larger than the sum of its proper divisors (1).

110021212121129 is an equidigital number, since it uses as much as digits as its factorization.

110021212121129 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 26.

The spelling of 110021212121129 in words is "one hundred ten trillion, twenty-one billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twenty-nine".