1220100093857 has 2 divisors, whose sum is σ = 1220100093858. Its totient is φ = 1220100093856.

The previous prime is 1220100093827. The next prime is 1220100093889. The reversal of 1220100093857 is 7583900010221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 642088100416 + 578011993441 = 801304^2 + 760271^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220100093857 - 2⁸ = 1220100093601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220100093857.

It is not a weakly prime, because it can be changed into another prime (1220100093827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610050046928 + 610050046929.

It is an arithmetic number, because the mean of its divisors is an integer number (610050046929).

Almost surely, 2^{1220100093857} is an apocalyptic number.

It is an amenable number.

1220100093857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220100093857 is an equidigital number, since it uses as much as digits as its factorization.

1220100093857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 1220100093857 in words is "one trillion, two hundred twenty billion, one hundred million, ninety-three thousand, eight hundred fifty-seven".