1225503022151 has 2 divisors, whose sum is σ = 1225503022152. Its totient is φ = 1225503022150.

The previous prime is 1225503022127. The next prime is 1225503022153. The reversal of 1225503022151 is 1512203055221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225503022151 is a prime.

Together with 1225503022153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225503022153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612751511075 + 612751511076.

It is an arithmetic number, because the mean of its divisors is an integer number (612751511076).

Almost surely, 2^{1225503022151} is an apocalyptic number.

1225503022151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225503022151 is an equidigital number, since it uses as much as digits as its factorization.

1225503022151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 1225503022151 its reverse (1512203055221), we get a palindrome (2737706077372).

The spelling of 1225503022151 in words is "one trillion, two hundred twenty-five billion, five hundred three million, twenty-two thousand, one hundred fifty-one".