11111021110212 has 48 divisors (see below), whose sum is σ = 27294949570560. Its totient is φ = 3508136358048.

The previous prime is 11111021110199. The next prime is 11111021110219. The reversal of 11111021110212 is 21201112011111.

It is a super-2 number, since 2×11111021110212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111021110191 and 11111021110200.

It is not an unprimeable number, because it can be changed into a prime (11111021110219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2894908 + ... + 5531955.

It is an arithmetic number, because the mean of its divisors is an integer number (568644782720).

Almost surely, 2^{11111021110212} is an apocalyptic number.

11111021110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11111021110212 is an abundant number, since it is smaller than the sum of its proper divisors (16183928460348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111021110212 is a wasteful number, since it uses less digits than its factorization.

11111021110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8432672 (or 8432670 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11111021110212 its reverse (21201112011111), we get a palindrome (32312133121323).

The spelling of 11111021110212 in words is "eleven trillion, one hundred eleven billion, twenty-one million, one hundred ten thousand, two hundred twelve".