20021210202201 has 32 divisors (see below), whose sum is σ = 30272285258880. Its totient is φ = 11668116096000.

The previous prime is 20021210202181. The next prime is 20021210202221. The reversal of 20021210202201 is 10220201212002.

It is an interprime number because it is at equal distance from previous prime (20021210202181) and next prime (20021210202221).

It is not a de Polignac number, because 20021210202201 - 2⁷ = 20021210202073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20021210202221) 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, 2747590 + ... + 6898671.

It is an arithmetic number, because the mean of its divisors is an integer number (946008914340).

Almost surely, 2^{20021210202201} is an apocalyptic number.

It is an amenable number.

20021210202201 is a deficient number, since it is larger than the sum of its proper divisors (10251075056679).

20021210202201 is a wasteful number, since it uses less digits than its factorization.

20021210202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9649097.

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

Adding to 20021210202201 its reverse (10220201212002), we get a palindrome (30241411414203).

The spelling of 20021210202201 in words is "twenty trillion, twenty-one billion, two hundred ten million, two hundred two thousand, two hundred one".