2213042121 has 16 divisors (see below), whose sum is σ = 3288043200. Its totient is φ = 1471103424.

The previous prime is 2213042107. The next prime is 2213042131. The reversal of 2213042121 is 1212403122.

It is a happy number.

2213042121 is a `hidden beast` number, since 221 + 3 + 0 + 421 + 21 = 666.

2213042121 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 2213042121 - 2⁷ = 2213041993 is a prime.

It is a super-3 number, since 3×2213042121³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2213042094 and 2213042103.

It is not an unprimeable number, because it can be changed into a prime (2213042131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108736 + ... + 127473.

It is an arithmetic number, because the mean of its divisors is an integer number (205502700).

Almost surely, 2^2213042121 is an apocalyptic number.

It is an amenable number.

2213042121 is a deficient number, since it is larger than the sum of its proper divisors (1075001079).

2213042121 is a wasteful number, since it uses less digits than its factorization.

2213042121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236565 (or 236559 counting only the distinct ones).

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

The square root of 2213042121 is about 47042.9816338208. The cubic root of 2213042121 is about 1303.1564562149.

Adding to 2213042121 its reverse (1212403122), we get a palindrome (3425445243).

The spelling of 2213042121 in words is "two billion, two hundred thirteen million, forty-two thousand, one hundred twenty-one".