20012201211 has 16 divisors (see below), whose sum is σ = 27433735200. Its totient is φ = 12966847488.

The previous prime is 20012201201. The next prime is 20012201221. The reversal of 20012201211 is 11210221002.

It is an interprime number because it is at equal distance from previous prime (20012201201) and next prime (20012201221).

It is not a de Polignac number, because 20012201211 - 2¹⁴ = 20012184827 is a prime.

It is a super-3 number, since 3×20012201211³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20012201201) 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, 6085 + ... + 200153.

It is an arithmetic number, because the mean of its divisors is an integer number (1714608450).

Almost surely, 2^20012201211 is an apocalyptic number.

20012201211 is a deficient number, since it is larger than the sum of its proper divisors (7421533989).

20012201211 is a wasteful number, since it uses less digits than its factorization.

20012201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195038.

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

Adding to 20012201211 its reverse (11210221002), we get a palindrome (31222422213).

The spelling of 20012201211 in words is "twenty billion, twelve million, two hundred one thousand, two hundred eleven".