211010102011100 has 72 divisors (see below), whose sum is σ = 523400573552640. Its totient is φ = 72333115081920.

The previous prime is 211010102011081. The next prime is 211010102011151. The reversal of 211010102011100 is 1110201010112.

It is a congruent number.

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, 23673644 + ... + 31344243.

Almost surely, 2^{211010102011100} is an apocalyptic number.

211010102011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211010102011100 is an abundant number, since it is smaller than the sum of its proper divisors (312390471541540).

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

211010102011100 is a wasteful number, since it uses less digits than its factorization.

211010102011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55023387 (or 55023380 counting only the distinct ones).

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

Adding to 211010102011100 its reverse (1110201010112), we get a palindrome (212120303021212).

The spelling of 211010102011100 in words is "two hundred eleven trillion, ten billion, one hundred two million, eleven thousand, one hundred".