121010221222 has 32 divisors (see below), whose sum is σ = 198929706624. Its totient is φ = 54751593600.

The previous prime is 121010221217. The next prime is 121010221231. The reversal of 121010221222 is 222122010121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121010221196 and 121010221205.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4513597 + ... + 4540327.

It is an arithmetic number, because the mean of its divisors is an integer number (6216553332).

Almost surely, 2^121010221222 is an apocalyptic number.

121010221222 is a deficient number, since it is larger than the sum of its proper divisors (77919485402).

121010221222 is a wasteful number, since it uses less digits than its factorization.

121010221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27684.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121010221222 its reverse (222122010121), we get a palindrome (343132231343).

The spelling of 121010221222 in words is "one hundred twenty-one billion, ten million, two hundred twenty-one thousand, two hundred twenty-two".