121220201103 has 8 divisors (see below), whose sum is σ = 161700177408. Its totient is φ = 80776846104.

The previous prime is 121220201041. The next prime is 121220201107. The reversal of 121220201103 is 301102022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121220201103 - 2¹⁴ = 121220184719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220201107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9147601 + ... + 9160842.

It is an arithmetic number, because the mean of its divisors is an integer number (20212522176).

Almost surely, 2^121220201103 is an apocalyptic number.

121220201103 is a deficient number, since it is larger than the sum of its proper divisors (40479976305).

121220201103 is a wasteful number, since it uses less digits than its factorization.

121220201103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18310653.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121220201103 its reverse (301102022121), we get a palindrome (422322223224).

The spelling of 121220201103 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred one thousand, one hundred three".