1220110201129 has 2 divisors, whose sum is σ = 1220110201130. Its totient is φ = 1220110201128.

The previous prime is 1220110201081. The next prime is 1220110201133. The reversal of 1220110201129 is 9211020110221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 909682935529 + 310427265600 = 953773^2 + 557160^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220110201129 - 2²⁵ = 1220076646697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220110201169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610055100564 + 610055100565.

It is an arithmetic number, because the mean of its divisors is an integer number (610055100565).

Almost surely, 2^{1220110201129} is an apocalyptic number.

It is an amenable number.

1220110201129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220110201129 is an equidigital number, since it uses as much as digits as its factorization.

1220110201129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 1220110201129 in words is "one trillion, two hundred twenty billion, one hundred ten million, two hundred one thousand, one hundred twenty-nine".