11212120032 has 24 divisors (see below), whose sum is σ = 29431815336. Its totient is φ = 3737373312.

The previous prime is 11212119979. The next prime is 11212120033. The reversal of 11212120032 is 23002121211.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×11212120032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212119993 and 11212120020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212120033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58396363 + ... + 58396554.

It is an arithmetic number, because the mean of its divisors is an integer number (1226325639).

Almost surely, 2^11212120032 is an apocalyptic number.

11212120032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11212120032 is an abundant number, since it is smaller than the sum of its proper divisors (18219695304).

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

11212120032 is a wasteful number, since it uses less digits than its factorization.

11212120032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116792930 (or 116792922 counting only the distinct ones).

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

Adding to 11212120032 its reverse (23002121211), we get a palindrome (34214241243).

The spelling of 11212120032 in words is "eleven billion, two hundred twelve million, one hundred twenty thousand, thirty-two".