211112013201222 has 512 divisors, whose sum is σ = 534141020160000. Its totient is φ = 55571714851968.

The previous prime is 211112013201217. The next prime is 211112013201259. The reversal of 211112013201222 is 222102310211112.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 171775437304 + ... + 171775438532.

It is an arithmetic number, because the mean of its divisors is an integer number (1043244180000).

Almost surely, 2^{211112013201222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211112013201222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267070510080000).

211112013201222 is an abundant number, since it is smaller than the sum of its proper divisors (323029006958778).

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

211112013201222 is a wasteful number, since it uses less digits than its factorization.

211112013201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 211112013201222 its reverse (222102310211112), we get a palindrome (433214323412334).

The spelling of 211112013201222 in words is "two hundred eleven trillion, one hundred twelve billion, thirteen million, two hundred one thousand, two hundred twenty-two".