201022202121 has 8 divisors (see below), whose sum is σ = 288647264640. Its totient is φ = 123705970512.

The previous prime is 201022202111. The next prime is 201022202141. The reversal of 201022202121 is 121202220102.

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

It is not a de Polignac number, because 201022202121 - 2⁶ = 201022202057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201022202121.

It is not an unprimeable number, because it can be changed into a prime (201022202111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2577207681 + ... + 2577207758.

It is an arithmetic number, because the mean of its divisors is an integer number (36080908080).

Almost surely, 2^201022202121 is an apocalyptic number.

It is an amenable number.

201022202121 is a deficient number, since it is larger than the sum of its proper divisors (87625062519).

201022202121 is a wasteful number, since it uses less digits than its factorization.

201022202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154415455.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201022202121 its reverse (121202220102), we get a palindrome (322224422223).

The spelling of 201022202121 in words is "two hundred one billion, twenty-two million, two hundred two thousand, one hundred twenty-one".