121210110202 has 8 divisors (see below), whose sum is σ = 181823040756. Its totient is φ = 60602429952.

The previous prime is 121210110199. The next prime is 121210110209. The reversal of 121210110202 is 202011012121.

It can be written as a sum of positive squares in 2 ways, for example, as 113171015281 + 8039094921 = 336409^2 + 89661^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121210110209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254343 + ... + 1347514.

Almost surely, 2^121210110202 is an apocalyptic number.

121210110202 is a deficient number, since it is larger than the sum of its proper divisors (60612930554).

121210110202 is a wasteful number, since it uses less digits than its factorization.

121210110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625152.

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

Adding to 121210110202 its reverse (202011012121), we get a palindrome (323221122323).

The spelling of 121210110202 in words is "one hundred twenty-one billion, two hundred ten million, one hundred ten thousand, two hundred two".