1222251885635 has 8 divisors (see below), whose sum is σ = 1600038832176. Its totient is φ = 888910462240.

The previous prime is 1222251885623. The next prime is 1222251885671. The reversal of 1222251885635 is 5365881522221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1222251885635 is a prime.

It is a super-3 number, since 3×1222251885635³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11111380724 + ... + 11111380833.

It is an arithmetic number, because the mean of its divisors is an integer number (200004854022).

Almost surely, 2^{1222251885635} is an apocalyptic number.

1222251885635 is a deficient number, since it is larger than the sum of its proper divisors (377786946541).

1222251885635 is a wasteful number, since it uses less digits than its factorization.

1222251885635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22222761573.

The product of its digits is 2304000, while the sum is 50.

The spelling of 1222251885635 in words is "one trillion, two hundred twenty-two billion, two hundred fifty-one million, eight hundred eighty-five thousand, six hundred thirty-five".