121101220221010 has 16 divisors (see below), whose sum is σ = 222620115470976. Its totient is φ = 47409839405488.

The previous prime is 121101220220941. The next prime is 121101220221013. The reversal of 121101220221010 is 10122022101121.

It is a super-2 number, since 2×121101220221010² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121101220221013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128831084872 + ... + 128831085811.

It is an arithmetic number, because the mean of its divisors is an integer number (13913757216936).

Almost surely, 2^{121101220221010} is an apocalyptic number.

121101220221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121101220221010 is a deficient number, since it is larger than the sum of its proper divisors (101518895249966).

121101220221010 is a wasteful number, since it uses less digits than its factorization.

121101220221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257662170737.

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

Adding to 121101220221010 its reverse (10122022101121), we get a palindrome (131223242322131).

The spelling of 121101220221010 in words is "one hundred twenty-one trillion, one hundred one billion, two hundred twenty million, two hundred twenty-one thousand, ten".