211021110101100 has 108 divisors (see below), whose sum is σ = 661132884042456. Its totient is φ = 51943657858560.

The previous prime is 211021110101077. The next prime is 211021110101107. The reversal of 211021110101100 is 1101011120112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (211021110101107) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2081025337 + ... + 2081126736.

Almost surely, 2^{211021110101100} is an apocalyptic number.

211021110101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211021110101100 is an abundant number, since it is smaller than the sum of its proper divisors (450111773941356).

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

211021110101100 is a wasteful number, since it uses less digits than its factorization.

211021110101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162152116 (or 4162152096 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 211021110101100 its reverse (1101011120112), we get a palindrome (212122121221212).

The spelling of 211021110101100 in words is "two hundred eleven trillion, twenty-one billion, one hundred ten million, one hundred one thousand, one hundred".