11222121123012 has 12 divisors (see below), whose sum is σ = 26184949287056. Its totient is φ = 3740707041000.

The previous prime is 11222121123011. The next prime is 11222121123097. The reversal of 11222121123012 is 21032112122211.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×11222121123012² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11222121123012.

It is not an unprimeable number, because it can be changed into a prime (11222121123011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467588380114 + ... + 467588380137.

Almost surely, 2^{11222121123012} is an apocalyptic number.

11222121123012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11222121123012 is an abundant number, since it is smaller than the sum of its proper divisors (14962828164044).

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

11222121123012 is a wasteful number, since it uses less digits than its factorization.

11222121123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935176760258 (or 935176760256 counting only the distinct ones).

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

Adding to 11222121123012 its reverse (21032112122211), we get a palindrome (32254233245223).

The spelling of 11222121123012 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-three thousand, twelve".