121244430212 has 48 divisors (see below), whose sum is σ = 221238646272. Its totient is φ = 58073821440.

The previous prime is 121244430211. The next prime is 121244430221. The reversal of 121244430212 is 212034442121.

It is not an unprimeable number, because it can be changed into a prime (121244430211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22990808 + ... + 22996080.

It is an arithmetic number, because the mean of its divisors is an integer number (4609138464).

Almost surely, 2^121244430212 is an apocalyptic number.

It is an amenable number.

121244430212 is a deficient number, since it is larger than the sum of its proper divisors (99994216060).

121244430212 is a wasteful number, since it uses less digits than its factorization.

121244430212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7148 (or 7146 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 121244430212 its reverse (212034442121), we get a palindrome (333278872333).

The spelling of 121244430212 in words is "one hundred twenty-one billion, two hundred forty-four million, four hundred thirty thousand, two hundred twelve".