1899000221002 has 32 divisors (see below), whose sum is σ = 2883091795920. Its totient is φ = 938006784000.

The previous prime is 1899000220993. The next prime is 1899000221009. The reversal of 1899000221002 is 2001220009981.

It can be written as a sum of positive squares in 8 ways, for example, as 1894011765361 + 4988455641 = 1376231^2 + 70629^2 .

It is not an unprimeable number, because it can be changed into a prime (1899000221009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345207252 + ... + 345212752.

Almost surely, 2^{1899000221002} is an apocalyptic number.

1899000221002 is a deficient number, since it is larger than the sum of its proper divisors (984091574918).

1899000221002 is a wasteful number, since it uses less digits than its factorization.

1899000221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8506.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 1899000221002 in words is "one trillion, eight hundred ninety-nine billion, two hundred twenty-one thousand, two".