1222101011251 has 2 divisors, whose sum is σ = 1222101011252. Its totient is φ = 1222101011250.

The previous prime is 1222101011237. The next prime is 1222101011279. The reversal of 1222101011251 is 1521101012221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222101011251 - 2¹⁷ = 1222100880179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222101011051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611050505625 + 611050505626.

It is an arithmetic number, because the mean of its divisors is an integer number (611050505626).

Almost surely, 2^{1222101011251} is an apocalyptic number.

1222101011251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222101011251 is an equidigital number, since it uses as much as digits as its factorization.

1222101011251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 1222101011251 its reverse (1521101012221), we get a palindrome (2743202023472).

The spelling of 1222101011251 in words is "one trillion, two hundred twenty-two billion, one hundred one million, eleven thousand, two hundred fifty-one".