211010121010122 has 128 divisors (see below), whose sum is σ = 512142032240640. Its totient is φ = 56616894336960.

The previous prime is 211010121010121. The next prime is 211010121010159. The reversal of 211010121010122 is 221010121010112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (211010121010121) 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, 47700547 + ... + 51936137.

It is an arithmetic number, because the mean of its divisors is an integer number (4001109626880).

Almost surely, 2^{211010121010122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211010121010122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256071016120320).

211010121010122 is an abundant number, since it is smaller than the sum of its proper divisors (301131911230518).

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

211010121010122 is a wasteful number, since it uses less digits than its factorization.

211010121010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236168.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211010121010122 its reverse (221010121010112), we get a palindrome (432020242020234).

The spelling of 211010121010122 in words is "two hundred eleven trillion, ten billion, one hundred twenty-one million, ten thousand, one hundred twenty-two".