2170000221739 has 48 divisors (see below), whose sum is σ = 2687098875552. Its totient is φ = 1741230339072.

The previous prime is 2170000221731. The next prime is 2170000221751. The reversal of 2170000221739 is 9371220000712.

It is not a de Polignac number, because 2170000221739 - 2³ = 2170000221731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2170000221731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123307689 + ... + 123325285.

It is an arithmetic number, because the mean of its divisors is an integer number (55981226574).

Almost surely, 2^{2170000221739} is an apocalyptic number.

2170000221739 is a deficient number, since it is larger than the sum of its proper divisors (517098653813).

2170000221739 is a wasteful number, since it uses less digits than its factorization.

2170000221739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18412 (or 18405 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 2170000221739 in words is "two trillion, one hundred seventy billion, two hundred twenty-one thousand, seven hundred thirty-nine".