11121111210212 has 12 divisors (see below), whose sum is σ = 19461993613356. Its totient is φ = 5560541606400.

The previous prime is 11121111210173. The next prime is 11121111210271. The reversal of 11121111210212 is 21201211112111.

It can be written as a sum of positive squares in 2 ways, for example, as 2544331249216 + 8576779960996 = 1595096^2 + 2928614^2 .

It is a super-2 number, since 2×11121111210212² (a number of 27 digits) contains 22 as substring.

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, 1597289 + ... + 4979312.

It is an arithmetic number, because the mean of its divisors is an integer number (1621832801113).

Almost surely, 2^{11121111210212} is an apocalyptic number.

It is an amenable number.

11121111210212 is a deficient number, since it is larger than the sum of its proper divisors (8340882403144).

11121111210212 is a wasteful number, since it uses less digits than its factorization.

11121111210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6999358 (or 6999356 counting only the distinct ones).

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

Adding to 11121111210212 its reverse (21201211112111), we get a palindrome (32322322322323).

The spelling of 11121111210212 in words is "eleven trillion, one hundred twenty-one billion, one hundred eleven million, two hundred ten thousand, two hundred twelve".