20220121211 has 8 divisors (see below), whose sum is σ = 21403818480. Its totient is φ = 19068854112.

The previous prime is 20220121193. The next prime is 20220121247. The reversal of 20220121211 is 11212102202.

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 20220121211 - 2¹⁰ = 20220120187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220120211) 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, 8106260 + ... + 8108753.

It is an arithmetic number, because the mean of its divisors is an integer number (2675477310).

Almost surely, 2^20220121211 is an apocalyptic number.

20220121211 is a deficient number, since it is larger than the sum of its proper divisors (1183697269).

20220121211 is a wasteful number, since it uses less digits than its factorization.

20220121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16215085.

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

Adding to 20220121211 its reverse (11212102202), we get a palindrome (31432223413).

The spelling of 20220121211 in words is "twenty billion, two hundred twenty million, one hundred twenty-one thousand, two hundred eleven".