1222228513635 has 32 divisors (see below), whose sum is σ = 2043854648640. Its totient is φ = 622888992768.

The previous prime is 1222228513613. The next prime is 1222228513637. The reversal of 1222228513635 is 5363158222221.

It is a happy number.

It is not a de Polignac number, because 1222228513635 - 2¹⁰ = 1222228512611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222228513637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14440902 + ... + 14525291.

It is an arithmetic number, because the mean of its divisors is an integer number (63870457770).

Almost surely, 2^{1222228513635} is an apocalyptic number.

1222228513635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1222228513635 is a deficient number, since it is larger than the sum of its proper divisors (821626135005).

1222228513635 is a wasteful number, since it uses less digits than its factorization.

1222228513635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28966327.

The product of its digits is 345600, while the sum is 42.

The spelling of 1222228513635 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-eight million, five hundred thirteen thousand, six hundred thirty-five".