211002131221100 has 18 divisors (see below), whose sum is σ = 457874624750004. Its totient is φ = 84400852488400.

The previous prime is 211002131221099. The next prime is 211002131221169. The reversal of 211002131221100 is 1122131200112.

It is a happy number.

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, 1055010656006 + ... + 1055010656205.

It is an arithmetic number, because the mean of its divisors is an integer number (25437479152778).

Almost surely, 2^{211002131221100} is an apocalyptic number.

211002131221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211002131221100 is an abundant number, since it is smaller than the sum of its proper divisors (246872493528904).

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

211002131221100 is a wasteful number, since it uses less digits than its factorization.

211002131221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110021312225 (or 2110021312218 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211002131221100 its reverse (1122131200112), we get a palindrome (212124262421212).

The spelling of 211002131221100 in words is "two hundred eleven trillion, two billion, one hundred thirty-one million, two hundred twenty-one thousand, one hundred".