211121012200 has 96 divisors (see below), whose sum is σ = 570175292160. Its totient is φ = 71197689600.

The previous prime is 211121012147. The next prime is 211121012273. The reversal of 211121012200 is 2210121112.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1150672 + ... + 1321471.

It is an arithmetic number, because the mean of its divisors is an integer number (5939325960).

Almost surely, 2^211121012200 is an apocalyptic number.

211121012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211121012200 is an abundant number, since it is smaller than the sum of its proper divisors (359054279960).

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

211121012200 is a wasteful number, since it uses less digits than its factorization.

211121012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472227 (or 2472218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211121012200 its reverse (2210121112), we get a palindrome (213331133312).

The spelling of 211121012200 in words is "two hundred eleven billion, one hundred twenty-one million, twelve thousand, two hundred".