1294729323222 has 16 divisors (see below), whose sum is σ = 2589583670640. Its totient is φ = 431555603712.

The previous prime is 1294729323211. The next prime is 1294729323227. The reversal of 1294729323222 is 2223239274921.

It is a super-2 number, since 2×1294729323222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1294729323227) 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, 5074447 + ... + 5323482.

It is an arithmetic number, because the mean of its divisors is an integer number (161848979415).

Almost surely, 2^{1294729323222} is an apocalyptic number.

1294729323222 is an abundant number, since it is smaller than the sum of its proper divisors (1294854347418).

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

1294729323222 is a wasteful number, since it uses less digits than its factorization.

1294729323222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10418687.

The product of its digits is 1306368, while the sum is 48.

The spelling of 1294729323222 in words is "one trillion, two hundred ninety-four billion, seven hundred twenty-nine million, three hundred twenty-three thousand, two hundred twenty-two".