211001212122 has 16 divisors (see below), whose sum is σ = 422011128000. Its totient is φ = 70332286752.

The previous prime is 211001212111. The next prime is 211001212139. The reversal of 211001212122 is 221212100112.

211001212122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×211001212122⁴ (a number of 46 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23038 + ... + 650025.

It is an arithmetic number, because the mean of its divisors is an integer number (26375695500).

Almost surely, 2^211001212122 is an apocalyptic number.

211001212122 is an abundant number, since it is smaller than the sum of its proper divisors (211009915878).

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

211001212122 is a wasteful number, since it uses less digits than its factorization.

211001212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725317.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211001212122 its reverse (221212100112), we get a palindrome (432213312234).

The spelling of 211001212122 in words is "two hundred eleven billion, one million, two hundred twelve thousand, one hundred twenty-two".