2231420212 has 36 divisors (see below), whose sum is σ = 4547283300. Its totient is φ = 955323264.

The previous prime is 2231420209. The next prime is 2231420231. The reversal of 2231420212 is 2120241322.

It can be written as a sum of positive squares in 2 ways, for example, as 1664313616 + 567106596 = 40796^2 + 23814^2 .

It is a super-3 number, since 3×2231420212³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231420212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200178 + ... + 211030.

It is an arithmetic number, because the mean of its divisors is an integer number (126313425).

Almost surely, 2^2231420212 is an apocalyptic number.

It is an amenable number.

2231420212 is an abundant number, since it is smaller than the sum of its proper divisors (2315863088).

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

2231420212 is a wasteful number, since it uses less digits than its factorization.

2231420212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11920 (or 11911 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2231420212 is about 47237.9107497357. The cubic root of 2231420212 is about 1306.7538476412.

Adding to 2231420212 its reverse (2120241322), we get a palindrome (4351661534).

The spelling of 2231420212 in words is "two billion, two hundred thirty-one million, four hundred twenty thousand, two hundred twelve".