121020201110 has 16 divisors (see below), whose sum is σ = 218353795632. Its totient is φ = 48293095200.

The previous prime is 121020201109. The next prime is 121020201163. The reversal of 121020201110 is 11102020121.

It is a junction number, because it is equal to n+sod(n) for n = 121020201091 and 121020201100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14368736 + ... + 14377155.

It is an arithmetic number, because the mean of its divisors is an integer number (13647112227).

Almost surely, 2^121020201110 is an apocalyptic number.

121020201110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121020201110 is a deficient number, since it is larger than the sum of its proper divisors (97333594522).

121020201110 is a wasteful number, since it uses less digits than its factorization.

121020201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28746319.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121020201110 its reverse (11102020121), we get a palindrome (132122221231).

The spelling of 121020201110 in words is "one hundred twenty-one billion, twenty million, two hundred one thousand, one hundred ten".