211222111102100 has 72 divisors (see below), whose sum is σ = 551400879543360. Its totient is φ = 68607482699520.

The previous prime is 211222111102063. The next prime is 211222111102117. The reversal of 211222111102100 is 1201111222112.

It is a super-2 number, since 2×211222111102100² (a number of 29 digits) contains 22 as substring.

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, 7940667569 + ... + 7940694168.

Almost surely, 2^{211222111102100} is an apocalyptic number.

211222111102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211222111102100 is an abundant number, since it is smaller than the sum of its proper divisors (340178768441260).

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

211222111102100 is a wasteful number, since it uses less digits than its factorization.

211222111102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15881361777 (or 15881361770 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211222111102100 its reverse (1201111222112), we get a palindrome (212423222324212).

The spelling of 211222111102100 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred eleven million, one hundred two thousand, one hundred".