201122030121 has 8 divisors (see below), whose sum is σ = 272558817024. Its totient is φ = 131883298320.

The previous prime is 201122030117. The next prime is 201122030143. The reversal of 201122030121 is 121030221102.

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

It is not a de Polignac number, because 201122030121 - 2² = 201122030117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201122030121.

It is not an unprimeable number, because it can be changed into a prime (201122030111) 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, 549513561 + ... + 549513926.

It is an arithmetic number, because the mean of its divisors is an integer number (34069852128).

Almost surely, 2^201122030121 is an apocalyptic number.

It is an amenable number.

201122030121 is a deficient number, since it is larger than the sum of its proper divisors (71436786903).

201122030121 is a wasteful number, since it uses less digits than its factorization.

201122030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099027551.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 201122030121 its reverse (121030221102), we get a palindrome (322152251223).

The spelling of 201122030121 in words is "two hundred one billion, one hundred twenty-two million, thirty thousand, one hundred twenty-one".