1220222103816 has 32 divisors (see below), whose sum is σ = 3051748434240. Its totient is φ = 406581611328.

The previous prime is 1220222103809. The next prime is 1220222103817. The reversal of 1220222103816 is 6183012220221.

It is a super-2 number, since 2×1220222103816² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220222103817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9880476 + ... + 10003211.

It is an arithmetic number, because the mean of its divisors is an integer number (95367138570).

Almost surely, 2^{1220222103816} is an apocalyptic number.

It is an amenable number.

1220222103816 is an abundant number, since it is smaller than the sum of its proper divisors (1831526330424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220222103816 is a wasteful number, since it uses less digits than its factorization.

1220222103816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19886253 (or 19886249 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 1220222103816 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred three thousand, eight hundred sixteen".