1101212102251 has 2 divisors, whose sum is σ = 1101212102252. Its totient is φ = 1101212102250.

The previous prime is 1101212102197. The next prime is 1101212102261. The reversal of 1101212102251 is 1522012121011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101212102251 - 2²⁹ = 1100675231339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101212102261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550606051125 + 550606051126.

It is an arithmetic number, because the mean of its divisors is an integer number (550606051126).

Almost surely, 2^{1101212102251} is an apocalyptic number.

1101212102251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101212102251 is an equidigital number, since it uses as much as digits as its factorization.

1101212102251 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1101212102251 its reverse (1522012121011), we get a palindrome (2623224223262).

The spelling of 1101212102251 in words is "one trillion, one hundred one billion, two hundred twelve million, one hundred two thousand, two hundred fifty-one".