210211002010191 has 128 divisors (see below), whose sum is σ = 373593229019136. Its totient is φ = 101990690979840.

The previous prime is 210211002010171. The next prime is 210211002010241. The reversal of 210211002010191 is 191010200112012.

It is not a de Polignac number, because 210211002010191 - 2²¹ = 210210999913039 is a prime.

It is a super-2 number, since 2×210211002010191² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211002010171) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 61552396 + ... + 64877726.

It is an arithmetic number, because the mean of its divisors is an integer number (2918697101712).

Almost surely, 2^{210211002010191} is an apocalyptic number.

210211002010191 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

210211002010191 is a deficient number, since it is larger than the sum of its proper divisors (163382227008945).

210211002010191 is a wasteful number, since it uses less digits than its factorization.

210211002010191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325681.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 210211002010191 in words is "two hundred ten trillion, two hundred eleven billion, two million, ten thousand, one hundred ninety-one".