211210121122104 has 64 divisors (see below), whose sum is σ = 568644946329600. Its totient is φ = 64987465286016.

The previous prime is 211210121122103. The next prime is 211210121122157. The reversal of 211210121122104 is 401221121012112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210121122103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83923177 + ... + 86403239.

It is an arithmetic number, because the mean of its divisors is an integer number (8885077286400).

Almost surely, 2^{211210121122104} is an apocalyptic number.

211210121122104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

211210121122104 is an abundant number, since it is smaller than the sum of its proper divisors (357434825207496).

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

211210121122104 is a wasteful number, since it uses less digits than its factorization.

211210121122104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753044 (or 2753040 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211210121122104 its reverse (401221121012112), we get a palindrome (612431242134216).

The spelling of 211210121122104 in words is "two hundred eleven trillion, two hundred ten billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred four".