211221222200112 has 40 divisors (see below), whose sum is σ = 558963478266480. Its totient is φ = 68689828357120.

The previous prime is 211221222200101. The next prime is 211221222200137. The reversal of 211221222200112 is 211002222122112.

It is a super-2 number, since 2×211221222200112² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53663926437 + ... + 53663930372.

It is an arithmetic number, because the mean of its divisors is an integer number (13974086956662).

Almost surely, 2^{211221222200112} is an apocalyptic number.

It is an amenable number.

211221222200112 is an abundant number, since it is smaller than the sum of its proper divisors (347742256066368).

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

211221222200112 is a wasteful number, since it uses less digits than its factorization.

211221222200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107327856861 (or 107327856855 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211221222200112 its reverse (211002222122112), we get a palindrome (422223444322224).

The spelling of 211221222200112 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred thousand, one hundred twelve".