19219122 has 48 divisors (see below), whose sum is σ = 46807488. Its totient is φ = 5654880.

The previous prime is 19219097. The next prime is 19219147. The reversal of 19219122 is 22191291.

It is an interprime number because it is at equal distance from previous prime (19219097) and next prime (19219147).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3597 + ... + 7167.

It is an arithmetic number, because the mean of its divisors is an integer number (975156).

Almost surely, 2^19219122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19219122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23403744).

19219122 is an abundant number, since it is smaller than the sum of its proper divisors (27588366).

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

19219122 is a wasteful number, since it uses less digits than its factorization.

19219122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615 (or 3612 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 19219122 is about 4383.9619067688. The cubic root of 19219122 is about 267.8620456550.

The spelling of 19219122 in words is "nineteen million, two hundred nineteen thousand, one hundred twenty-two".