11012211111212 has 48 divisors (see below), whose sum is σ = 20803630982400. Its totient is φ = 5084865952320.

The previous prime is 11012211111157. The next prime is 11012211111229. The reversal of 11012211111212 is 21211111221011.

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, 67074239 + ... + 67238217.

It is an arithmetic number, because the mean of its divisors is an integer number (433408978800).

Almost surely, 2^{11012211111212} is an apocalyptic number.

It is an amenable number.

11012211111212 is a deficient number, since it is larger than the sum of its proper divisors (9791419871188).

11012211111212 is a wasteful number, since it uses less digits than its factorization.

11012211111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189206 (or 189204 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11012211111212 its reverse (21211111221011), we get a palindrome (32223322332223).

The spelling of 11012211111212 in words is "eleven trillion, twelve billion, two hundred eleven million, one hundred eleven thousand, two hundred twelve".