212211112101100 has 72 divisors (see below), whose sum is σ = 527609209981280. Its totient is φ = 72574825720320.

The previous prime is 212211112101091. The next prime is 212211112101101. The reversal of 212211112101100 is 1101211112212.

It is not an unprimeable number, because it can be changed into a prime (212211112101101) 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, 381534105 + ... + 382089904.

Almost surely, 2^{212211112101100} is an apocalyptic number.

212211112101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212211112101100 is an abundant number, since it is smaller than the sum of its proper divisors (315398097880180).

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

212211112101100 is a wasteful number, since it uses less digits than its factorization.

212211112101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763624427 (or 763624420 counting only the distinct ones).

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

Adding to 212211112101100 its reverse (1101211112212), we get a palindrome (213312323213312).

The spelling of 212211112101100 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred twelve million, one hundred one thousand, one hundred".