1225622351 has 2 divisors, whose sum is σ = 1225622352. Its totient is φ = 1225622350.

The previous prime is 1225622213. The next prime is 1225622383. The reversal of 1225622351 is 1532265221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225622351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225642351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612811175 + 612811176.

It is an arithmetic number, because the mean of its divisors is an integer number (612811176).

Almost surely, 2^1225622351 is an apocalyptic number.

1225622351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225622351 is an equidigital number, since it uses as much as digits as its factorization.

1225622351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 1225622351 is about 35008.8895996431. The cubic root of 1225622351 is about 1070.1686492836.

Adding to 1225622351 its reverse (1532265221), we get a palindrome (2757887572).

The spelling of 1225622351 in words is "one billion, two hundred twenty-five million, six hundred twenty-two thousand, three hundred fifty-one".