221422712760025 has 24 divisors (see below), whose sum is σ = 315712693235264. Its totient is φ = 150901228238400.

The previous prime is 221422712759977. The next prime is 221422712760043. The reversal of 221422712760025 is 520067217224122.

It is a de Polignac number, because none of the positive numbers 2^k-221422712760025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3881175906 + ... + 3881232955.

Almost surely, 2^{221422712760025} is an apocalyptic number.

221422712760025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

221422712760025 is a deficient number, since it is larger than the sum of its proper divisors (94289980475239).

221422712760025 is a wasteful number, since it uses less digits than its factorization.

221422712760025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7762409041 (or 7762409036 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

Adding to 221422712760025 its reverse (520067217224122), we get a palindrome (741489929984147).

The spelling of 221422712760025 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, seven hundred twelve million, seven hundred sixty thousand, twenty-five".