1900200112100 has 18 divisors (see below), whose sum is σ = 4123434243474. Its totient is φ = 760080044800.

The previous prime is 1900200112087. The next prime is 1900200112133. The reversal of 1900200112100 is 12110020091.

It can be written as a sum of positive squares in 3 ways, for example, as 219863458816 + 1680336653284 = 468896^2 + 1296278^2 .

It is a super-2 number, since 2×1900200112100² (a number of 25 digits) contains 22 as substring.

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, 9501000461 + ... + 9501000660.

It is an arithmetic number, because the mean of its divisors is an integer number (229079680193).

Almost surely, 2^{1900200112100} is an apocalyptic number.

1900200112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1900200112100 is an abundant number, since it is smaller than the sum of its proper divisors (2223234131374).

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

1900200112100 is a wasteful number, since it uses less digits than its factorization.

1900200112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19002001135 (or 19002001128 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1900200112100 its reverse (12110020091), we get a palindrome (1912310132191).

The spelling of 1900200112100 in words is "one trillion, nine hundred billion, two hundred million, one hundred twelve thousand, one hundred".