2121223234 has 8 divisors (see below), whose sum is σ = 3426591420. Its totient is φ = 979026096.

The previous prime is 2121223219. The next prime is 2121223249. The reversal of 2121223234 is 4323221212.

It is an interprime number because it is at equal distance from previous prime (2121223219) and next prime (2121223249).

It can be written as a sum of positive squares in 2 ways, for example, as 1948957609 + 172265625 = 44147^2 + 13125^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2121223234² = 8999176016922837512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40792729 + ... + 40792780.

Almost surely, 2^2121223234 is an apocalyptic number.

2121223234 is a deficient number, since it is larger than the sum of its proper divisors (1305368186).

2121223234 is a wasteful number, since it uses less digits than its factorization.

2121223234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81585524.

The product of its digits is 1152, while the sum is 22.

The square root of 2121223234 is about 46056.7392897066. The cubic root of 2121223234 is about 1284.8786864838.

Adding to 2121223234 its reverse (4323221212), we get a palindrome (6444444446).

The spelling of 2121223234 in words is "two billion, one hundred twenty-one million, two hundred twenty-three thousand, two hundred thirty-four".