220221101200957 has 2 divisors, whose sum is σ = 220221101200958. Its totient is φ = 220221101200956.

The previous prime is 220221101200921. The next prime is 220221101200993. The reversal of 220221101200957 is 759002101122022.

It is a balanced prime because it is at equal distance from previous prime (220221101200921) and next prime (220221101200993).

It can be written as a sum of positive squares in only one way, i.e., 218704494172921 + 1516607028036 = 14788661^2 + 1231506^2 .

It is a cyclic number.

It is not a de Polignac number, because 220221101200957 - 2³⁹ = 219671345387069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220221101201957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110550600478 + 110110550600479.

It is an arithmetic number, because the mean of its divisors is an integer number (110110550600479).

Almost surely, 2^{220221101200957} is an apocalyptic number.

It is an amenable number.

220221101200957 is a deficient number, since it is larger than the sum of its proper divisors (1).

220221101200957 is an equidigital number, since it uses as much as digits as its factorization.

220221101200957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

Adding to 220221101200957 its reverse (759002101122022), we get a palindrome (979223202322979).

The spelling of 220221101200957 in words is "two hundred twenty trillion, two hundred twenty-one billion, one hundred one million, two hundred thousand, nine hundred fifty-seven".