1111021211212 has 48 divisors (see below), whose sum is σ = 2143407619584. Its totient is φ = 499690520000.

The previous prime is 1111021211207. The next prime is 1111021211263. The reversal of 1111021211212 is 2121121201111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6955887 + ... + 7113817.

It is an arithmetic number, because the mean of its divisors is an integer number (44654325408).

Almost surely, 2^{1111021211212} is an apocalyptic number.

It is an amenable number.

1111021211212 is a deficient number, since it is larger than the sum of its proper divisors (1032386408372).

1111021211212 is a wasteful number, since it uses less digits than its factorization.

1111021211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159630 (or 159628 counting only the distinct ones).

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

Adding to 1111021211212 its reverse (2121121201111), we get a palindrome (3232142412323).

The spelling of 1111021211212 in words is "one trillion, one hundred eleven billion, twenty-one million, two hundred eleven thousand, two hundred twelve".