1990100218911 has 64 divisors (see below), whose sum is σ = 3135270739968. Its totient is φ = 1099091161728.

The previous prime is 1990100218871. The next prime is 1990100218919. The reversal of 1990100218911 is 1198120010991.

It is not a de Polignac number, because 1990100218911 - 2⁷ = 1990100218783 is a prime.

It is a super-2 number, since 2×1990100218911² (a number of 25 digits) contains 22 as substring.

1990100218911 is a modest number, since divided by 218911 gives 19901 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990100218919) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 360066030 + ... + 360071556.

It is an arithmetic number, because the mean of its divisors is an integer number (48988605312).

Almost surely, 2^{1990100218911} is an apocalyptic number.

1990100218911 is a deficient number, since it is larger than the sum of its proper divisors (1145170521057).

1990100218911 is a wasteful number, since it uses less digits than its factorization.

1990100218911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8580.

The product of its (nonzero) digits is 11664, while the sum is 42.

The spelling of 1990100218911 in words is "one trillion, nine hundred ninety billion, one hundred million, two hundred eighteen thousand, nine hundred eleven".