2203722172 has 24 divisors (see below), whose sum is σ = 4215093120. Its totient is φ = 1003591680.

The previous prime is 2203722149. The next prime is 2203722193. The reversal of 2203722172 is 2712273022.

It is a super-2 number, since 2×2203722172² = 9712782822728795168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2203722172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520597 + ... + 524812.

It is an arithmetic number, because the mean of its divisors is an integer number (175628880).

Almost surely, 2^2203722172 is an apocalyptic number.

It is an amenable number.

2203722172 is a deficient number, since it is larger than the sum of its proper divisors (2011370948).

2203722172 is a wasteful number, since it uses less digits than its factorization.

2203722172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045461 (or 1045459 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 2203722172 is about 46943.8193162849. The cubic root of 2203722172 is about 1301.3245222240.

Adding to 2203722172 its reverse (2712273022), we get a palindrome (4915995194).

The spelling of 2203722172 in words is "two billion, two hundred three million, seven hundred twenty-two thousand, one hundred seventy-two".