121212102202 has 8 divisors (see below), whose sum is σ = 182018617056. Its totient is φ = 60539229852.

The previous prime is 121212102173. The next prime is 121212102239. The reversal of 121212102202 is 202201212121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33408358 + ... + 33411985.

It is an arithmetic number, because the mean of its divisors is an integer number (22752327132).

Almost surely, 2^121212102202 is an apocalyptic number.

121212102202 is a deficient number, since it is larger than the sum of its proper divisors (60806514854).

121212102202 is an equidigital number, since it uses as much as digits as its factorization.

121212102202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66821252.

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

Adding to 121212102202 its reverse (202201212121), we get a palindrome (323413314323).

The spelling of 121212102202 in words is "one hundred twenty-one billion, two hundred twelve million, one hundred two thousand, two hundred two".