201121221210010 has 16 divisors (see below), whose sum is σ = 362210863564800. Its totient is φ = 80405673953616.

The previous prime is 201121221209983. The next prime is 201121221210011. The reversal of 201121221210010 is 10012122121102.

It is not an unprimeable number, because it can be changed into a prime (201121221210011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5351796570 + ... + 5351834149.

It is an arithmetic number, because the mean of its divisors is an integer number (22638178972800).

Almost surely, 2^{201121221210010} is an apocalyptic number.

201121221210010 is a deficient number, since it is larger than the sum of its proper divisors (161089642354790).

201121221210010 is a wasteful number, since it uses less digits than its factorization.

201121221210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10703632605.

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

Adding to 201121221210010 its reverse (10012122121102), we get a palindrome (211133343331112).

The spelling of 201121221210010 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred ten thousand, ten".