1000112221012 has 24 divisors (see below), whose sum is σ = 1827121254336. Its totient is φ = 478097323968.

The previous prime is 1000112221001. The next prime is 1000112221013. The reversal of 1000112221012 is 2101222110001.

It is a junction number, because it is equal to n+sod(n) for n = 1000112220983 and 1000112221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000112221013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2264593 + ... + 2669944.

It is an arithmetic number, because the mean of its divisors is an integer number (76130052264).

Almost surely, 2^{1000112221012} is an apocalyptic number.

It is an amenable number.

1000112221012 is a deficient number, since it is larger than the sum of its proper divisors (827009033324).

1000112221012 is a wasteful number, since it uses less digits than its factorization.

1000112221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4936767 (or 4936765 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1000112221012 its reverse (2101222110001), we get a palindrome (3101334331013).

The spelling of 1000112221012 in words is "one trillion, one hundred twelve million, two hundred twenty-one thousand, twelve".