11212222311012 has 24 divisors (see below), whose sum is σ = 26172188697312. Its totient is φ = 3735930774400.

The previous prime is 11212222311001. The next prime is 11212222311023. The reversal of 11212222311012 is 21011322221211.

It is an interprime number because it is at equal distance from previous prime (11212222311001) and next prime (11212222311023).

It is a self number, because there is not a number n which added to its sum of digits gives 11212222311012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184551189 + ... + 184611932.

It is an arithmetic number, because the mean of its divisors is an integer number (1090507862388).

Almost surely, 2^{11212222311012} is an apocalyptic number.

11212222311012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11212222311012 is an abundant number, since it is smaller than the sum of its proper divisors (14959966386300).

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

11212222311012 is a wasteful number, since it uses less digits than its factorization.

11212222311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369165659 (or 369165657 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11212222311012 its reverse (21011322221211), we get a palindrome (32223544532223).

The spelling of 11212222311012 in words is "eleven trillion, two hundred twelve billion, two hundred twenty-two million, three hundred eleven thousand, twelve".