20210212211 has 16 divisors (see below), whose sum is σ = 23455094208. Its totient is φ = 17056656000.

The previous prime is 20210212177. The next prime is 20210212223. The reversal of 20210212211 is 11221201202.

It is a cyclic number.

It is not a de Polignac number, because 20210212211 - 2⁶ = 20210212147 is a prime.

It is a super-2 number, since 2×20210212211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20210218211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49001 + ... + 206933.

It is an arithmetic number, because the mean of its divisors is an integer number (1465943388).

Almost surely, 2^20210212211 is an apocalyptic number.

20210212211 is a deficient number, since it is larger than the sum of its proper divisors (3244881997).

20210212211 is a wasteful number, since it uses less digits than its factorization.

20210212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158222.

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

Adding to 20210212211 its reverse (11221201202), we get a palindrome (31431413413).

The spelling of 20210212211 in words is "twenty billion, two hundred ten million, two hundred twelve thousand, two hundred eleven".