2269121900 has 18 divisors (see below), whose sum is σ = 4923994740. Its totient is φ = 907648720.

The previous prime is 2269121863. The next prime is 2269121909. The reversal of 2269121900 is 91219622.

It is a super-2 number, since 2×2269121900² = 10297828394119220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2269121909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11345510 + ... + 11345709.

Almost surely, 2^2269121900 is an apocalyptic number.

2269121900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2269121900 is an abundant number, since it is smaller than the sum of its proper divisors (2654872840).

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

2269121900 is a wasteful number, since it uses less digits than its factorization.

2269121900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22691233 (or 22691226 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 2269121900 is about 47635.3009857186. The cubic root of 2269121900 is about 1314.0723456959.

The spelling of 2269121900 in words is "two billion, two hundred sixty-nine million, one hundred twenty-one thousand, nine hundred".