2212121043 has 32 divisors (see below), whose sum is σ = 3635769600. Its totient is φ = 1317945600.

The previous prime is 2212121029. The next prime is 2212121069. The reversal of 2212121043 is 3401212122.

It is a happy number.

2212121043 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2212121043 - 2⁸ = 2212120787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2212121083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45598 + ... + 80643.

It is an arithmetic number, because the mean of its divisors is an integer number (113617800).

Almost surely, 2^2212121043 is an apocalyptic number.

2212121043 is a deficient number, since it is larger than the sum of its proper divisors (1423648557).

2212121043 is a wasteful number, since it uses less digits than its factorization.

2212121043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126320 (or 126314 counting only the distinct ones).

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

The square root of 2212121043 is about 47033.1908656004. The cubic root of 2212121043 is about 1302.9756379506.

Adding to 2212121043 its reverse (3401212122), we get a palindrome (5613333165).

The spelling of 2212121043 in words is "two billion, two hundred twelve million, one hundred twenty-one thousand, forty-three".