220251250001 has 2 divisors, whose sum is σ = 220251250002. Its totient is φ = 220251250000.

The previous prime is 220251249991. The next prime is 220251250031. The reversal of 220251250001 is 100052152022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166508883025 + 53742366976 = 408055^2 + 231824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220251250001 is a prime.

It is a super-2 number, since 2×220251250001² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220251250031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110125625000 + 110125625001.

It is an arithmetic number, because the mean of its divisors is an integer number (110125625001).

Almost surely, 2^220251250001 is an apocalyptic number.

It is an amenable number.

220251250001 is a deficient number, since it is larger than the sum of its proper divisors (1).

220251250001 is an equidigital number, since it uses as much as digits as its factorization.

220251250001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The spelling of 220251250001 in words is "two hundred twenty billion, two hundred fifty-one million, two hundred fifty thousand, one".