1220402134329 has 16 divisors (see below), whose sum is σ = 1859700956160. Its totient is φ = 697357437840.

The previous prime is 1220402134321. The next prime is 1220402134363. The reversal of 1220402134329 is 9234312040221.

It is not a de Polignac number, because 1220402134329 - 2³ = 1220402134321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220402134329.

It is not an unprimeable number, because it can be changed into a prime (1220402134321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390474 + ... + 1610364.

It is an arithmetic number, because the mean of its divisors is an integer number (116231309760).

Almost surely, 2^{1220402134329} is an apocalyptic number.

It is an amenable number.

1220402134329 is a deficient number, since it is larger than the sum of its proper divisors (639298821831).

1220402134329 is a wasteful number, since it uses less digits than its factorization.

1220402134329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267540.

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 1220402134329 in words is "one trillion, two hundred twenty billion, four hundred two million, one hundred thirty-four thousand, three hundred twenty-nine".