200020010122221 has 32 divisors (see below), whose sum is σ = 278755861168128. Its totient is φ = 127334894037120.

The previous prime is 200020010122193. The next prime is 200020010122259. The reversal of 200020010122221 is 122221010020002.

It is not a de Polignac number, because 200020010122221 - 2⁵ = 200020010122189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200020010122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020010126221) 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, 1961371785 + ... + 1961473761.

It is an arithmetic number, because the mean of its divisors is an integer number (8711120661504).

Almost surely, 2^{200020010122221} is an apocalyptic number.

It is an amenable number.

200020010122221 is a deficient number, since it is larger than the sum of its proper divisors (78735851045907).

200020010122221 is a wasteful number, since it uses less digits than its factorization.

200020010122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149441.

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

Adding to 200020010122221 its reverse (122221010020002), we get a palindrome (322241020142223).

The spelling of 200020010122221 in words is "two hundred trillion, twenty billion, ten million, one hundred twenty-two thousand, two hundred twenty-one".