11012012212212 has 144 divisors (see below), whose sum is σ = 31581384744000. Its totient is φ = 3327410741760.

The previous prime is 11012012212193. The next prime is 11012012212219. The reversal of 11012012212212 is 21221221021011.

11012012212212 is a `hidden beast` number, since 110 + 120 + 1 + 221 + 2 + 212 = 666.

It is a super-2 number, since 2×11012012212212² (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 (11012012212219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2255964 + ... + 5207052.

Almost surely, 2^{11012012212212} is an apocalyptic number.

11012012212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11012012212212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15790692372000).

11012012212212 is an abundant number, since it is smaller than the sum of its proper divisors (20569372531788).

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

11012012212212 is a wasteful number, since it uses less digits than its factorization.

11012012212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951468 (or 2951454 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11012012212212 its reverse (21221221021011), we get a palindrome (32233233233223).

The spelling of 11012012212212 in words is "eleven trillion, twelve billion, twelve million, two hundred twelve thousand, two hundred twelve".