11212121000106 has 96 divisors (see below), whose sum is σ = 28034276437440. Its totient is φ = 3207829105152.

The previous prime is 11212121000071. The next prime is 11212121000107. The reversal of 11212121000106 is 60100012121211.

It is a super-2 number, since 2×11212121000106² (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 not an unprimeable number, because it can be changed into a prime (11212121000107) 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, 16648936 + ... + 17309283.

It is an arithmetic number, because the mean of its divisors is an integer number (292023712890).

Almost surely, 2^{11212121000106} is an apocalyptic number.

11212121000106 is an abundant number, since it is smaller than the sum of its proper divisors (16822155437334).

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

11212121000106 is a wasteful number, since it uses less digits than its factorization.

11212121000106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33958340 (or 33958337 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11212121000106 its reverse (60100012121211), we get a palindrome (71312133121317).

The spelling of 11212121000106 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-one million, one hundred six", and thus it is an aban number.