121220102201 has 16 divisors (see below), whose sum is σ = 139243104000. Its totient is φ = 104367848400.

The previous prime is 121220102191. The next prime is 121220102203. The reversal of 121220102201 is 102201022121.

It is a cyclic number.

It is not a de Polignac number, because 121220102201 - 2¹⁴ = 121220085817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121220102203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601586 + ... + 777396.

It is an arithmetic number, because the mean of its divisors is an integer number (8702694000).

Almost surely, 2^121220102201 is an apocalyptic number.

121220102201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121220102201 is a deficient number, since it is larger than the sum of its proper divisors (18023001799).

121220102201 is a wasteful number, since it uses less digits than its factorization.

121220102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179140.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121220102201 its reverse (102201022121), we get a palindrome (223421124322).

The spelling of 121220102201 in words is "one hundred twenty-one billion, two hundred twenty million, one hundred two thousand, two hundred one".