121202012102 has 4 divisors (see below), whose sum is σ = 181803018156. Its totient is φ = 60601006050.

The previous prime is 121202012081. The next prime is 121202012131. The reversal of 121202012102 is 201210202121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30300503024 + ... + 30300503027.

It is an arithmetic number, because the mean of its divisors is an integer number (45450754539).

Almost surely, 2^121202012102 is an apocalyptic number.

121202012102 is a deficient number, since it is larger than the sum of its proper divisors (60601006054).

121202012102 is an equidigital number, since it uses as much as digits as its factorization.

121202012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60601006053.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121202012102 its reverse (201210202121), we get a palindrome (322412214223).

The spelling of 121202012102 in words is "one hundred twenty-one billion, two hundred two million, twelve thousand, one hundred two".