1222139094016 has 99 divisors (see below), whose sum is σ = 2469604998441. Its totient is φ = 604507275264.

The previous prime is 1222139093983. The next prime is 1222139094019. The reversal of 1222139094016 is 6104909312221.

The square root of 1222139094016 is 1105504.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 296110105600 + 926028988416 = 544160^2 + 962304^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222139094016.

It is not an unprimeable number, because it can be changed into a prime (1222139094019) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6332326816 + ... + 6332327008.

Almost surely, 2^{1222139094016} is an apocalyptic number.

1222139094016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1222139094016 is the 1105504-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222139094016

1222139094016 is an abundant number, since it is smaller than the sum of its proper divisors (1247465904425).

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

1222139094016 is an frugal number, since it uses more digits than its factorization.

1222139094016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 1222139094016 in words is "one trillion, two hundred twenty-two billion, one hundred thirty-nine million, ninety-four thousand, sixteen".