1219734122 has 16 divisors (see below), whose sum is σ = 1999717632. Its totient is φ = 555476160.

The previous prime is 1219734121. The next prime is 1219734157. The reversal of 1219734122 is 2214379121.

It is a super-2 number, since 2×1219734122² = 2975502656742221768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1219734121) 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, 577568 + ... + 579675.

It is an arithmetic number, because the mean of its divisors is an integer number (124982352).

Almost surely, 2^1219734122 is an apocalyptic number.

1219734122 is a deficient number, since it is larger than the sum of its proper divisors (779983510).

1219734122 is a wasteful number, since it uses less digits than its factorization.

1219734122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157293.

The product of its digits is 6048, while the sum is 32.

The square root of 1219734122 is about 34924.6921532603. The cubic root of 1219734122 is about 1068.4521019554.

The spelling of 1219734122 in words is "one billion, two hundred nineteen million, seven hundred thirty-four thousand, one hundred twenty-two".