121202200220210 has 64 divisors (see below), whose sum is σ = 227485041131520. Its totient is φ = 46436237084160.

The previous prime is 121202200220173. The next prime is 121202200220317. The reversal of 121202200220210 is 12022002202121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411501695 + ... + 411796125.

It is an arithmetic number, because the mean of its divisors is an integer number (3554453767680).

Almost surely, 2^{121202200220210} is an apocalyptic number.

121202200220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121202200220210 is a deficient number, since it is larger than the sum of its proper divisors (106282840911310).

121202200220210 is a wasteful number, since it uses less digits than its factorization.

121202200220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305771.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121202200220210 its reverse (12022002202121), we get a palindrome (133224202422331).

The spelling of 121202200220210 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred million, two hundred twenty thousand, two hundred ten".