2201111022251 has 2 divisors, whose sum is σ = 2201111022252. Its totient is φ = 2201111022250.

The previous prime is 2201111022217. The next prime is 2201111022307. The reversal of 2201111022251 is 1522201111022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2201111022251 - 2²² = 2201106827947 is a prime.

It is not a weakly prime, because it can be changed into another prime (2201111022151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100555511125 + 1100555511126.

It is an arithmetic number, because the mean of its divisors is an integer number (1100555511126).

Almost surely, 2^{2201111022251} is an apocalyptic number.

2201111022251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201111022251 is an equidigital number, since it uses as much as digits as its factorization.

2201111022251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 2201111022251 its reverse (1522201111022), we get a palindrome (3723312133273).

The spelling of 2201111022251 in words is "two trillion, two hundred one billion, one hundred eleven million, twenty-two thousand, two hundred fifty-one".