20020221201211 has 8 divisors (see below), whose sum is σ = 24960275783424. Its totient is φ = 15600172364520.

The previous prime is 20020221201187. The next prime is 20020221201217. The reversal of 20020221201211 is 11210212202002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20020221201211 - 2¹⁷ = 20020221070139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020221201217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130001436295 + ... + 130001436448.

It is an arithmetic number, because the mean of its divisors is an integer number (3120034472928).

Almost surely, 2^{20020221201211} is an apocalyptic number.

20020221201211 is a deficient number, since it is larger than the sum of its proper divisors (4940054582213).

20020221201211 is a wasteful number, since it uses less digits than its factorization.

20020221201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260002872761.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20020221201211 its reverse (11210212202002), we get a palindrome (31230433403213).

The spelling of 20020221201211 in words is "twenty trillion, twenty billion, two hundred twenty-one million, two hundred one thousand, two hundred eleven".