121200010222 has 12 divisors (see below), whose sum is σ = 193123200600. Its totient is φ = 57035298656.

The previous prime is 121200010147. The next prime is 121200010223. The reversal of 121200010222 is 222010002121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121200010223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104843722 + ... + 104844877.

It is an arithmetic number, because the mean of its divisors is an integer number (16093600050).

Almost surely, 2^121200010222 is an apocalyptic number.

121200010222 is a deficient number, since it is larger than the sum of its proper divisors (71923190378).

121200010222 is a wasteful number, since it uses less digits than its factorization.

121200010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209688635 (or 209688618 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121200010222 its reverse (222010002121), we get a palindrome (343210012343).

The spelling of 121200010222 in words is "one hundred twenty-one billion, two hundred million, ten thousand, two hundred twenty-two".