20122001211 has 16 divisors (see below), whose sum is σ = 28895682816. Its totient is φ = 12381675936.

The previous prime is 20122001183. The next prime is 20122001213. The reversal of 20122001211 is 11210022102.

It is not a de Polignac number, because 20122001211 - 2⁷ = 20122001083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20122001213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 802876 + ... + 827558.

It is an arithmetic number, because the mean of its divisors is an integer number (1805980176).

Almost surely, 2^20122001211 is an apocalyptic number.

20122001211 is a deficient number, since it is larger than the sum of its proper divisors (8773681605).

20122001211 is a wasteful number, since it uses less digits than its factorization.

20122001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45602.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20122001211 its reverse (11210022102), we get a palindrome (31332023313).

The spelling of 20122001211 in words is "twenty billion, one hundred twenty-two million, one thousand, two hundred eleven".