201021221102 has 8 divisors (see below), whose sum is σ = 324726587976. Its totient is φ = 92779025112.

The previous prime is 201021220993. The next prime is 201021221161. The reversal of 201021221102 is 201122120102.

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

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, 3865792688 + ... + 3865792739.

It is an arithmetic number, because the mean of its divisors is an integer number (40590823497).

Almost surely, 2^201021221102 is an apocalyptic number.

201021221102 is a deficient number, since it is larger than the sum of its proper divisors (123705366874).

201021221102 is a wasteful number, since it uses less digits than its factorization.

201021221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731585442.

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

Adding to 201021221102 its reverse (201122120102), we get a palindrome (402143341204).

The spelling of 201021221102 in words is "two hundred one billion, twenty-one million, two hundred twenty-one thousand, one hundred two".