1220656610093 has 2 divisors, whose sum is σ = 1220656610094. Its totient is φ = 1220656610092.

The previous prime is 1220656610023. The next prime is 1220656610099. The reversal of 1220656610093 is 3900166560221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663309255844 + 557347354249 = 814438^2 + 746557^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220656610093 - 2²² = 1220652415789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220656610093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220656610099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610328305046 + 610328305047.

It is an arithmetic number, because the mean of its divisors is an integer number (610328305047).

Almost surely, 2^{1220656610093} is an apocalyptic number.

It is an amenable number.

1220656610093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220656610093 is an equidigital number, since it uses as much as digits as its factorization.

1220656610093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 1220656610093 in words is "one trillion, two hundred twenty billion, six hundred fifty-six million, six hundred ten thousand, ninety-three".