211111212011122 has 64 divisors (see below), whose sum is σ = 337099016580480. Its totient is φ = 98876643618816.

The previous prime is 211111212011039. The next prime is 211111212011137. The reversal of 211111212011122 is 221110212111112.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 211111212011122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2290234698 + ... + 2290326874.

It is an arithmetic number, because the mean of its divisors is an integer number (5267172134070).

Almost surely, 2^{211111212011122} is an apocalyptic number.

211111212011122 is a deficient number, since it is larger than the sum of its proper divisors (125987804569358).

211111212011122 is a wasteful number, since it uses less digits than its factorization.

211111212011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94075.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 211111212011122 its reverse (221110212111112), we get a palindrome (432221424122234).

The spelling of 211111212011122 in words is "two hundred eleven trillion, one hundred eleven billion, two hundred twelve million, eleven thousand, one hundred twenty-two".