121202110012210 has 32 divisors (see below), whose sum is σ = 220325134579632. Its totient is φ = 48000552652800.

The previous prime is 121202110012199. The next prime is 121202110012229. The reversal of 121202110012210 is 12210011202121.

It can be written as a sum of positive squares in 8 ways, for example, as 103244356211929 + 17957753800281 = 10160923^2 + 4237659^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284705274 + ... + 285130666.

Almost surely, 2^{121202110012210} is an apocalyptic number.

121202110012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121202110012210 is a deficient number, since it is larger than the sum of its proper divisors (99123024567422).

121202110012210 is a wasteful number, since it uses less digits than its factorization.

121202110012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707598.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121202110012210 its reverse (12210011202121), we get a palindrome (133412121214331).

The spelling of 121202110012210 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred ten million, twelve thousand, two hundred ten".