19221367134 has 64 divisors (see below), whose sum is σ = 39636292608. Its totient is φ = 6210691200.

The previous prime is 19221367111. The next prime is 19221367181. The reversal of 19221367134 is 43176312291.

It is a junction number, because it is equal to n+sod(n) for n = 19221367092 and 19221367101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29435152 + ... + 29435804.

It is an arithmetic number, because the mean of its divisors is an integer number (619317072).

Almost surely, 2^19221367134 is an apocalyptic number.

19221367134 is an abundant number, since it is smaller than the sum of its proper divisors (20414925474).

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

19221367134 is a wasteful number, since it uses less digits than its factorization.

19221367134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393.

The product of its digits is 54432, while the sum is 39.

The spelling of 19221367134 in words is "nineteen billion, two hundred twenty-one million, three hundred sixty-seven thousand, one hundred thirty-four".