220000000012129 has 2 divisors, whose sum is σ = 220000000012130. Its totient is φ = 220000000012128.

The previous prime is 220000000012069. The next prime is 220000000012147. The reversal of 220000000012129 is 921210000000022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143159908853025 + 76840091159104 = 11964945^2 + 8765848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220000000012129 is a prime.

It is a super-2 number, since 2×220000000012129² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220000000012229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000000006064 + 110000000006065.

It is an arithmetic number, because the mean of its divisors is an integer number (110000000006065).

Almost surely, 2^{220000000012129} is an apocalyptic number.

It is an amenable number.

220000000012129 is a deficient number, since it is larger than the sum of its proper divisors (1).

220000000012129 is an equidigital number, since it uses as much as digits as its factorization.

220000000012129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 220000000012129 in words is "two hundred twenty trillion, twelve thousand, one hundred twenty-nine".