121012211212 has 24 divisors (see below), whose sum is σ = 224889966000. Its totient is φ = 56814299136.

The previous prime is 121012211197. The next prime is 121012211213. The reversal of 121012211212 is 212112210121.

It is not an unprimeable number, because it can be changed into a prime (121012211213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7036837 + ... + 7054012.

It is an arithmetic number, because the mean of its divisors is an integer number (9370415250).

Almost surely, 2^121012211212 is an apocalyptic number.

It is an amenable number.

121012211212 is a deficient number, since it is larger than the sum of its proper divisors (103877754788).

121012211212 is a wasteful number, since it uses less digits than its factorization.

121012211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14090985 (or 14090983 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121012211212 its reverse (212112210121), we get a palindrome (333124421333).

The spelling of 121012211212 in words is "one hundred twenty-one billion, twelve million, two hundred eleven thousand, two hundred twelve".