210101120011100 has 72 divisors (see below), whose sum is σ = 457471794514560. Its totient is φ = 83754410388480.

The previous prime is 210101120011073. The next prime is 210101120011109. The reversal of 210101120011100 is 1110021101012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101120011109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149320661 + ... + 150721139.

Almost surely, 2^{210101120011100} is an apocalyptic number.

210101120011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210101120011100 is an abundant number, since it is smaller than the sum of its proper divisors (247370674503460).

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

210101120011100 is a wasteful number, since it uses less digits than its factorization.

210101120011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405599 (or 1405592 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 210101120011100 its reverse (1110021101012), we get a palindrome (211211141112112).

The spelling of 210101120011100 in words is "two hundred ten trillion, one hundred one billion, one hundred twenty million, eleven thousand, one hundred".