11212122150 has 72 divisors (see below), whose sum is σ = 30147014664. Its totient is φ = 2987539200.

The previous prime is 11212122137. The next prime is 11212122151. The reversal of 11212122150 is 5122121211.

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 (11212122151) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 603297 + ... + 621603.

It is an arithmetic number, because the mean of its divisors is an integer number (418708537).

Almost surely, 2^11212122150 is an apocalyptic number.

11212122150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212122150 is an abundant number, since it is smaller than the sum of its proper divisors (18934892514).

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

11212122150 is a wasteful number, since it uses less digits than its factorization.

11212122150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19686 (or 19678 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 11212122150 its reverse (5122121211), we get a palindrome (16334243361).

The spelling of 11212122150 in words is "eleven billion, two hundred twelve million, one hundred twenty-two thousand, one hundred fifty".