220000021102129 has 2 divisors, whose sum is σ = 220000021102130. Its totient is φ = 220000021102128.

The previous prime is 220000021102109. The next prime is 220000021102247. The reversal of 220000021102129 is 921201120000022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140894526010000 + 79105495092129 = 11869900^2 + 8894127^2 .

It is a cyclic number.

It is not a de Polignac number, because 220000021102129 - 2⁴¹ = 217800997846577 is a prime.

It is not a weakly prime, because it can be changed into another prime (220000021102109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000010551064 + 110000010551065.

It is an arithmetic number, because the mean of its divisors is an integer number (110000010551065).

Almost surely, 2^{220000021102129} is an apocalyptic number.

It is an amenable number.

220000021102129 is a deficient number, since it is larger than the sum of its proper divisors (1).

220000021102129 is an equidigital number, since it uses as much as digits as its factorization.

220000021102129 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 22.

The spelling of 220000021102129 in words is "two hundred twenty trillion, twenty-one million, one hundred two thousand, one hundred twenty-nine".