20000221012211 has 32 divisors (see below), whose sum is σ = 23177031870720. Its totient is φ = 17068054838400.

The previous prime is 20000221012183. The next prime is 20000221012241. The reversal of 20000221012211 is 11221012200002.

It is a cyclic number.

It is not a de Polignac number, because 20000221012211 - 2⁶ = 20000221012147 is a prime.

It is a super-2 number, since 2×20000221012211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000221012241) 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, 9524300 + ... + 11432966.

It is an arithmetic number, because the mean of its divisors is an integer number (724282245960).

Almost surely, 2^{20000221012211} is an apocalyptic number.

20000221012211 is a deficient number, since it is larger than the sum of its proper divisors (3176810858509).

20000221012211 is a wasteful number, since it uses less digits than its factorization.

20000221012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909155.

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

Adding to 20000221012211 its reverse (11221012200002), we get a palindrome (31221233212213).

The spelling of 20000221012211 in words is "twenty trillion, two hundred twenty-one million, twelve thousand, two hundred eleven".