11022222001212 has 36 divisors (see below), whose sum is σ = 27863402026096. Its totient is φ = 3673853228160.

The previous prime is 11022222001211. The next prime is 11022222001243. The reversal of 11022222001212 is 21210022222011.

It is a happy number.

11022222001212 is a `hidden beast` number, since 1 + 10 + 222 + 220 + 0 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×11022222001212² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022222001211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8590864 + ... + 9790167.

Almost surely, 2^{11022222001212} is an apocalyptic number.

11022222001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11022222001212 is an abundant number, since it is smaller than the sum of its proper divisors (16841180024884).

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

11022222001212 is a wasteful number, since it uses less digits than its factorization.

11022222001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18397698 (or 18397693 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11022222001212 its reverse (21210022222011), we get a palindrome (32232244223223).

The spelling of 11022222001212 in words is "eleven trillion, twenty-two billion, two hundred twenty-two million, one thousand, two hundred twelve".