11212122030 has 96 divisors (see below), whose sum is σ = 28770654816. Its totient is φ = 2795759616.

The previous prime is 11212122023. The next prime is 11212122079. The reversal of 11212122030 is 3022121211.

It is a super-2 number, since 2×11212122030² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1357072 + ... + 1365308.

It is an arithmetic number, because the mean of its divisors is an integer number (299694321).

Almost surely, 2^11212122030 is an apocalyptic number.

11212122030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11212122030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14385327408).

11212122030 is an abundant number, since it is smaller than the sum of its proper divisors (17558532786).

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

11212122030 is a wasteful number, since it uses less digits than its factorization.

11212122030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8438 (or 8421 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11212122030 its reverse (3022121211), we get a palindrome (14234243241).

The spelling of 11212122030 in words is "eleven billion, two hundred twelve million, one hundred twenty-two thousand, thirty".