121001201221010 has 64 divisors (see below), whose sum is σ = 250122426577920. Its totient is φ = 41682177593280.

The previous prime is 121001201220929. The next prime is 121001201221039. The reversal of 121001201221010 is 10122102100121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34096499 + ... + 37477641.

It is an arithmetic number, because the mean of its divisors is an integer number (3908162915280).

Almost surely, 2^{121001201221010} is an apocalyptic number.

121001201221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121001201221010 is an abundant number, since it is smaller than the sum of its proper divisors (129121225356910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121001201221010 is a wasteful number, since it uses less digits than its factorization.

121001201221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398303.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121001201221010 its reverse (10122102100121), we get a palindrome (131123303321131).

The spelling of 121001201221010 in words is "one hundred twenty-one trillion, one billion, two hundred one million, two hundred twenty-one thousand, ten".