210102199999944 has 64 divisors (see below), whose sum is σ = 600384740941440. Its totient is φ = 60019925905920.

The previous prime is 210102199999943. The next prime is 210102200000029. The reversal of 210102199999944 is 449999991201012.

It is not an unprimeable number, because it can be changed into a prime (210102199999943) 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, 95514447 + ... + 97689374.

It is an arithmetic number, because the mean of its divisors is an integer number (9381011577210).

Almost surely, 2^{210102199999944} is an apocalyptic number.

210102199999944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

210102199999944 is an abundant number, since it is smaller than the sum of its proper divisors (390282540941496).

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

210102199999944 is a wasteful number, since it uses less digits than its factorization.

210102199999944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193210310 (or 193210306 counting only the distinct ones).

The product of its (nonzero) digits is 34012224, while the sum is 69.

The spelling of 210102199999944 in words is "two hundred ten trillion, one hundred two billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred forty-four".