211011220122 has 32 divisors (see below), whose sum is σ = 430166842560. Its totient is φ = 68985181440.

The previous prime is 211011220097. The next prime is 211011220139. The reversal of 211011220122 is 221022110112.

211011220122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 535029 + ... + 841592.

It is an arithmetic number, because the mean of its divisors is an integer number (13442713830).

Almost surely, 2^211011220122 is an apocalyptic number.

211011220122 is an abundant number, since it is smaller than the sum of its proper divisors (219155622438).

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

211011220122 is a wasteful number, since it uses less digits than its factorization.

211011220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377118.

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

Adding to 211011220122 its reverse (221022110112), we get a palindrome (432033330234).

The spelling of 211011220122 in words is "two hundred eleven billion, eleven million, two hundred twenty thousand, one hundred twenty-two".