122421212 has 6 divisors (see below), whose sum is σ = 214237128. Its totient is φ = 61210604.

The previous prime is 122421193. The next prime is 122421223. The reversal of 122421212 is 212124221.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15302648 + ... + 15302655.

It is an arithmetic number, because the mean of its divisors is an integer number (35706188).

Almost surely, 2^122421212 is an apocalyptic number.

It is an amenable number.

122421212 is a deficient number, since it is larger than the sum of its proper divisors (91815916).

122421212 is a wasteful number, since it uses less digits than its factorization.

122421212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30605307 (or 30605305 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 122421212 is about 11064.4119590695. The cubic root of 122421212 is about 496.5376962448.

Adding to 122421212 its reverse (212124221), we get a palindrome (334545433).

The spelling of 122421212 in words is "one hundred twenty-two million, four hundred twenty-one thousand, two hundred twelve".