121220201102 has 32 divisors (see below), whose sum is σ = 244135793664. Its totient is φ = 43595676000.

The previous prime is 121220201041. The next prime is 121220201107. The reversal of 121220201102 is 201102022121.

It is a Harshad number since it is a multiple of its sum of digits (14).

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30272774 + ... + 30276777.

It is an arithmetic number, because the mean of its divisors is an integer number (7629243552).

Almost surely, 2^121220201102 is an apocalyptic number.

121220201102 is an abundant number, since it is smaller than the sum of its proper divisors (122915592562).

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

121220201102 is a wasteful number, since it uses less digits than its factorization.

121220201102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60549584.

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

Adding to 121220201102 its reverse (201102022121), we get a palindrome (322322223223).

The spelling of 121220201102 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred one thousand, one hundred two".