11212002120 has 64 divisors (see below), whose sum is σ = 36693829440. Its totient is φ = 2718060800.

The previous prime is 11212002089. The next prime is 11212002157. The reversal of 11212002120 is 2120021211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11212002096 and 11212002105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4245651 + ... + 4248290.

It is an arithmetic number, because the mean of its divisors is an integer number (573341085).

Almost surely, 2^11212002120 is an apocalyptic number.

11212002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212002120 is an abundant number, since it is smaller than the sum of its proper divisors (25481827320).

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

11212002120 is a wasteful number, since it uses less digits than its factorization.

11212002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8493966 (or 8493962 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11212002120 its reverse (2120021211), we get a palindrome (13332023331).

It can be divided in two parts, 1 and 1212002120, that added together give a palindrome (1212002121).

The spelling of 11212002120 in words is "eleven billion, two hundred twelve million, two thousand, one hundred twenty".