211421112100 has 36 divisors (see below), whose sum is σ = 500491435248. Its totient is φ = 76880404000.

The previous prime is 211421112083. The next prime is 211421112103. The reversal of 211421112100 is 1211124112.

It is not an unprimeable number, because it can be changed into a prime (211421112103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96099406 + ... + 96101605.

It is an arithmetic number, because the mean of its divisors is an integer number (13902539868).

Almost surely, 2^211421112100 is an apocalyptic number.

211421112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211421112100 is an abundant number, since it is smaller than the sum of its proper divisors (289070323148).

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

211421112100 is a wasteful number, since it uses less digits than its factorization.

211421112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192201036 (or 192201029 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211421112100 its reverse (1211124112), we get a palindrome (212632236212).

The spelling of 211421112100 in words is "two hundred eleven billion, four hundred twenty-one million, one hundred twelve thousand, one hundred".