200012220121 has 32 divisors (see below), whose sum is σ = 243090650880. Its totient is φ = 160649588736.

The previous prime is 200012220113. The next prime is 200012220143. The reversal of 200012220121 is 121022210002.

It is a happy number.

It is not a de Polignac number, because 200012220121 - 2³ = 200012220113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200012220101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39928065 + ... + 39933073.

It is an arithmetic number, because the mean of its divisors is an integer number (7596582840).

Almost surely, 2^200012220121 is an apocalyptic number.

It is an amenable number.

200012220121 is a deficient number, since it is larger than the sum of its proper divisors (43078430759).

200012220121 is a wasteful number, since it uses less digits than its factorization.

200012220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6433.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200012220121 its reverse (121022210002), we get a palindrome (321034430123).

The spelling of 200012220121 in words is "two hundred billion, twelve million, two hundred twenty thousand, one hundred twenty-one".