1222412325251 has 4 divisors (see below), whose sum is σ = 1316444042592. Its totient is φ = 1128380607912.

The previous prime is 1222412325227. The next prime is 1222412325259. The reversal of 1222412325251 is 1525232142221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222412325251 - 2²² = 1222408130947 is a prime.

It is a super-2 number, since 2×1222412325251² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222412325259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47015858651 + ... + 47015858676.

It is an arithmetic number, because the mean of its divisors is an integer number (329111010648).

Almost surely, 2^{1222412325251} is an apocalyptic number.

1222412325251 is a deficient number, since it is larger than the sum of its proper divisors (94031717341).

1222412325251 is an equidigital number, since it uses as much as digits as its factorization.

1222412325251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94031717340.

The product of its digits is 19200, while the sum is 32.

Adding to 1222412325251 its reverse (1525232142221), we get a palindrome (2747644467472).

The spelling of 1222412325251 in words is "one trillion, two hundred twenty-two billion, four hundred twelve million, three hundred twenty-five thousand, two hundred fifty-one".