4220113212 has 72 divisors (see below), whose sum is σ = 12201317856. Its totient is φ = 1204769664.

The previous prime is 4220113169. The next prime is 4220113223. The reversal of 4220113212 is 2123110224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339898 + ... + 352094.

It is an arithmetic number, because the mean of its divisors is an integer number (169462748).

Almost surely, 2^4220113212 is an apocalyptic number.

4220113212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4220113212 is an abundant number, since it is smaller than the sum of its proper divisors (7981204644).

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

4220113212 is a wasteful number, since it uses less digits than its factorization.

4220113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13587 (or 13582 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4220113212 is about 64962.3984471017. The cubic root of 4220113212 is about 1616.0000403351. Note that the first 4 decimals are identical.

Adding to 4220113212 its reverse (2123110224), we get a palindrome (6343223436).

The spelling of 4220113212 in words is "four billion, two hundred twenty million, one hundred thirteen thousand, two hundred twelve".