200201122121 has 64 divisors (see below), whose sum is σ = 274821120000. Its totient is φ = 140782786560.

The previous prime is 200201122073. The next prime is 200201122123. The reversal of 200201122121 is 121221102002.

It is not a de Polignac number, because 200201122121 - 2⁶ = 200201122057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200201122096 and 200201122105.

It is not an unprimeable number, because it can be changed into a prime (200201122123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58760000 + ... + 58763406.

It is an arithmetic number, because the mean of its divisors is an integer number (4294080000).

Almost surely, 2^200201122121 is an apocalyptic number.

It is an amenable number.

200201122121 is a deficient number, since it is larger than the sum of its proper divisors (74619997879).

200201122121 is a wasteful number, since it uses less digits than its factorization.

200201122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734.

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

Adding to 200201122121 its reverse (121221102002), we get a palindrome (321422224123).

The spelling of 200201122121 in words is "two hundred billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-one".