1220100210757 has 2 divisors, whose sum is σ = 1220100210758. Its totient is φ = 1220100210756.

The previous prime is 1220100210713. The next prime is 1220100210793. The reversal of 1220100210757 is 7570120010221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 660515423841 + 559584786916 = 812721^2 + 748054^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220100210757 - 2¹¹ = 1220100208709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220100210257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610050105378 + 610050105379.

It is an arithmetic number, because the mean of its divisors is an integer number (610050105379).

Almost surely, 2^{1220100210757} is an apocalyptic number.

It is an amenable number.

1220100210757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220100210757 is an equidigital number, since it uses as much as digits as its factorization.

1220100210757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 28.

Adding to 1220100210757 its reverse (7570120010221), we get a palindrome (8790220220978).

The spelling of 1220100210757 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred ten thousand, seven hundred fifty-seven".