121201012012 has 6 divisors (see below), whose sum is σ = 212101771028. Its totient is φ = 60600506004.

The previous prime is 121201012003. The next prime is 121201012063. The reversal of 121201012012 is 210210102121.

It is a junction number, because it is equal to n+sod(n) for n = 121201011983 and 121201012001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15150126498 + ... + 15150126505.

Almost surely, 2^121201012012 is an apocalyptic number.

It is an amenable number.

121201012012 is a deficient number, since it is larger than the sum of its proper divisors (90900759016).

121201012012 is a wasteful number, since it uses less digits than its factorization.

121201012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30300253007 (or 30300253005 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121201012012 its reverse (210210102121), we get a palindrome (331411114133).

The spelling of 121201012012 in words is "one hundred twenty-one billion, two hundred one million, twelve thousand, twelve".