221201102012 has 12 divisors (see below), whose sum is σ = 422293013016. Its totient is φ = 100545955440.

The previous prime is 221201101987. The next prime is 221201102099. The reversal of 221201102012 is 210201102122.

221201102012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2513648843 + ... + 2513648930.

It is an arithmetic number, because the mean of its divisors is an integer number (35191084418).

Almost surely, 2^221201102012 is an apocalyptic number.

221201102012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221201102012 is a deficient number, since it is larger than the sum of its proper divisors (201091911004).

221201102012 is a wasteful number, since it uses less digits than its factorization.

221201102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027297788 (or 5027297786 counting only the distinct ones).

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

Adding to 221201102012 its reverse (210201102122), we get a palindrome (431402204134).

It can be divided in two parts, 22120110 and 2012, that added together give a palindrome (22122122).

The spelling of 221201102012 in words is "two hundred twenty-one billion, two hundred one million, one hundred two thousand, twelve".