1111222100012 has 12 divisors (see below), whose sum is σ = 1944646165560. Its totient is φ = 555608909856.

The previous prime is 1111222099991. The next prime is 1111222100033. The reversal of 1111222100012 is 2100012221111.

It is an interprime number because it is at equal distance from previous prime (1111222099991) and next prime (1111222100033).

It is a self number, because there is not a number n which added to its sum of digits gives 1111222100012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458728 + ... + 2085744.

It is an arithmetic number, because the mean of its divisors is an integer number (162053847130).

Almost surely, 2^{1111222100012} is an apocalyptic number.

It is an amenable number.

1111222100012 is a deficient number, since it is larger than the sum of its proper divisors (833424065548).

1111222100012 is a wasteful number, since it uses less digits than its factorization.

1111222100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070080 (or 1070078 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1111222100012 its reverse (2100012221111), we get a palindrome (3211234321123).

The spelling of 1111222100012 in words is "one trillion, one hundred eleven billion, two hundred twenty-two million, one hundred thousand, twelve".