2281201900 has 18 divisors (see below), whose sum is σ = 4950208340. Its totient is φ = 912480720.

The previous prime is 2281201859. The next prime is 2281201913. The reversal of 2281201900 is 91021822.

2281201900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2281201900² = 10407764217127220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11405910 + ... + 11406109.

Almost surely, 2^2281201900 is an apocalyptic number.

2281201900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2281201900 is an abundant number, since it is smaller than the sum of its proper divisors (2669006440).

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

2281201900 is a wasteful number, since it uses less digits than its factorization.

2281201900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22812033 (or 22812026 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2281201900 is about 47761.9293998892. The cubic root of 2281201900 is about 1316.4001048441.

The spelling of 2281201900 in words is "two billion, two hundred eighty-one million, two hundred one thousand, nine hundred".