1211000112222 has 16 divisors (see below), whose sum is σ = 2422228005120. Its totient is φ = 403628740632.

The previous prime is 1211000112187. The next prime is 1211000112233. The reversal of 1211000112222 is 2222110001121.

It is a congruent number.

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, 9421708 + ... + 9549375.

It is an arithmetic number, because the mean of its divisors is an integer number (151389250320).

Almost surely, 2^{1211000112222} is an apocalyptic number.

1211000112222 is an abundant number, since it is smaller than the sum of its proper divisors (1211227892898).

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

1211000112222 is a wasteful number, since it uses less digits than its factorization.

1211000112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18981727.

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

Adding to 1211000112222 its reverse (2222110001121), we get a palindrome (3433110113343).

The spelling of 1211000112222 in words is "one trillion, two hundred eleven billion, one hundred twelve thousand, two hundred twenty-two".