121231222 has 16 divisors (see below), whose sum is σ = 210753792. Its totient is φ = 51224040.

The previous prime is 121231181. The next prime is 121231237. The reversal of 121231222 is 222132121.

It is a happy number.

It is a super-2 number, since 2×121231222² = 29394018375226568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121231196 and 121231205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59988 + ... + 61975.

It is an arithmetic number, because the mean of its divisors is an integer number (13172112).

Almost surely, 2^121231222 is an apocalyptic number.

121231222 is a deficient number, since it is larger than the sum of its proper divisors (89522570).

121231222 is a wasteful number, since it uses less digits than its factorization.

121231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122043.

The product of its digits is 96, while the sum is 16.

The square root of 121231222 is about 11010.5050747003. The cubic root of 121231222 is about 494.9235973635.

Adding to 121231222 its reverse (222132121), we get a palindrome (343363343).

The spelling of 121231222 in words is "one hundred twenty-one million, two hundred thirty-one thousand, two hundred twenty-two".