211233312100122 has 128 divisors (see below), whose sum is σ = 493498886065920. Its totient is φ = 59676888514560.

The previous prime is 211233312100121. The next prime is 211233312100133. The reversal of 211233312100122 is 221001213332112.

It is a junction number, because it is equal to n+sod(n) for n = 211233312100092 and 211233312100101.

It is not an unprimeable number, because it can be changed into a prime (211233312100121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1367934454 + ... + 1368088862.

It is an arithmetic number, because the mean of its divisors is an integer number (3855460047390).

Almost surely, 2^{211233312100122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211233312100122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246749443032960).

211233312100122 is an abundant number, since it is smaller than the sum of its proper divisors (282265573965798).

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

211233312100122 is a wasteful number, since it uses less digits than its factorization.

211233312100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179648.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 211233312100122 its reverse (221001213332112), we get a palindrome (432234525432234).

The spelling of 211233312100122 in words is "two hundred eleven trillion, two hundred thirty-three billion, three hundred twelve million, one hundred thousand, one hundred twenty-two".