121202100202012 has 6 divisors (see below), whose sum is σ = 212103675353528. Its totient is φ = 60601050101004.

The previous prime is 121202100201947. The next prime is 121202100202019. The reversal of 121202100202012 is 210202001202121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202100202019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15150262525248 + ... + 15150262525255.

Almost surely, 2^{121202100202012} is an apocalyptic number.

It is an amenable number.

121202100202012 is a deficient number, since it is larger than the sum of its proper divisors (90901575151516).

121202100202012 is a wasteful number, since it uses less digits than its factorization.

121202100202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30300525050507 (or 30300525050505 counting only the distinct ones).

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

Adding to 121202100202012 its reverse (210202001202121), we get a palindrome (331404101404133).

The spelling of 121202100202012 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred million, two hundred two thousand, twelve".