201221102021102 has 8 divisors (see below), whose sum is σ = 319586456151216. Its totient is φ = 94692283304032.

The previous prime is 201221102021087. The next prime is 201221102021129. The reversal of 201221102021102 is 201120201122102.

201221102021102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2959133853218 + ... + 2959133853285.

It is an arithmetic number, because the mean of its divisors is an integer number (39948307018902).

Almost surely, 2^{201221102021102} is an apocalyptic number.

201221102021102 is a deficient number, since it is larger than the sum of its proper divisors (118365354130114).

201221102021102 is a wasteful number, since it uses less digits than its factorization.

201221102021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5918267706522.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201221102021102 its reverse (201120201122102), we get a palindrome (402341303143204).

The spelling of 201221102021102 in words is "two hundred one trillion, two hundred twenty-one billion, one hundred two million, twenty-one thousand, one hundred two".