201221120220122 has 8 divisors (see below), whose sum is σ = 306947471522400. Its totient is φ = 98905296379324.

The previous prime is 201221120220121. The next prime is 201221120220151. The reversal of 201221120220122 is 221022021122102.

201221120220122 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 junction number, because it is equal to n+sod(n) for n = 201221120220094 and 201221120220103.

It is not an unprimeable number, because it can be changed into a prime (201221120220121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852631865222 + ... + 852631865457.

It is an arithmetic number, because the mean of its divisors is an integer number (38368433940300).

Almost surely, 2^{201221120220122} is an apocalyptic number.

201221120220122 is a deficient number, since it is larger than the sum of its proper divisors (105726351302278).

201221120220122 is a wasteful number, since it uses less digits than its factorization.

201221120220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705263730740.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 201221120220122 its reverse (221022021122102), we get a palindrome (422243141342224).

The spelling of 201221120220122 in words is "two hundred one trillion, two hundred twenty-one billion, one hundred twenty million, two hundred twenty thousand, one hundred twenty-two".