220542298129 has 2 divisors, whose sum is σ = 220542298130. Its totient is φ = 220542298128.

The previous prime is 220542298057. The next prime is 220542298147. The reversal of 220542298129 is 921892245022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202945745025 + 17596553104 = 450495^2 + 132652^2 .

It is a cyclic number.

It is not a de Polignac number, because 220542298129 - 2¹⁷ = 220542167057 is a prime.

It is not a weakly prime, because it can be changed into another prime (220542298159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110271149064 + 110271149065.

It is an arithmetic number, because the mean of its divisors is an integer number (110271149065).

Almost surely, 2^220542298129 is an apocalyptic number.

It is an amenable number.

220542298129 is a deficient number, since it is larger than the sum of its proper divisors (1).

220542298129 is an equidigital number, since it uses as much as digits as its factorization.

220542298129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 46.

It can be divided in two parts, 220542 and 298129, that added together give a triangular number (518671 = T₁₀₁₈).

The spelling of 220542298129 in words is "two hundred twenty billion, five hundred forty-two million, two hundred ninety-eight thousand, one hundred twenty-nine".