2172372011 has 12 divisors (see below), whose sum is σ = 2392417872. Its totient is φ = 1968549264.

The previous prime is 2172371987. The next prime is 2172372023. The reversal of 2172372011 is 1102732712.

It is not a de Polignac number, because 2172372011 - 2⁶ = 2172371947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2172372311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122516 + ... + 139121.

It is an arithmetic number, because the mean of its divisors is an integer number (199368156).

Almost surely, 2^2172372011 is an apocalyptic number.

2172372011 is a deficient number, since it is larger than the sum of its proper divisors (220045861).

2172372011 is a wasteful number, since it uses less digits than its factorization.

2172372011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261698 (or 261679 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 2172372011 is about 46608.7117500581. The cubic root of 2172372011 is about 1295.1241436718.

The spelling of 2172372011 in words is "two billion, one hundred seventy-two million, three hundred seventy-two thousand, eleven".