201121020221110 has 48 divisors (see below), whose sum is σ = 397922497308000. Its totient is φ = 73134536808960.

The previous prime is 201121020220999. The next prime is 201121020221123. The reversal of 201121020221110 is 11122020121102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 351048166 + ... + 351620614.

It is an arithmetic number, because the mean of its divisors is an integer number (8290052027250).

Almost surely, 2^{201121020221110} is an apocalyptic number.

201121020221110 is a deficient number, since it is larger than the sum of its proper divisors (196801477086890).

201121020221110 is a wasteful number, since it uses less digits than its factorization.

201121020221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862837 (or 862826 counting only the distinct ones).

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

Adding to 201121020221110 its reverse (11122020121102), we get a palindrome (212243040342212).

The spelling of 201121020221110 in words is "two hundred one trillion, one hundred twenty-one billion, twenty million, two hundred twenty-one thousand, one hundred ten".