1111222210312 has 128 divisors (see below), whose sum is σ = 2325565440000. Its totient is φ = 495982206720.

The previous prime is 1111222210271. The next prime is 1111222210313. The reversal of 1111222210312 is 2130122221111.

It is a self number, because there is not a number n which added to its sum of digits gives 1111222210312.

It is not an unprimeable number, because it can be changed into a prime (1111222210313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19347814 + ... + 19405162.

It is an arithmetic number, because the mean of its divisors is an integer number (18168480000).

Almost surely, 2^{1111222210312} is an apocalyptic number.

It is an amenable number.

1111222210312 is an abundant number, since it is smaller than the sum of its proper divisors (1214343229688).

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

1111222210312 is a wasteful number, since it uses less digits than its factorization.

1111222210312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57531 (or 57527 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1111222210312 its reverse (2130122221111), we get a palindrome (3241344431423).

The spelling of 1111222210312 in words is "one trillion, one hundred eleven billion, two hundred twenty-two million, two hundred ten thousand, three hundred twelve".