20211202222011 has 48 divisors (see below), whose sum is σ = 31562753913600. Its totient is φ = 12419294808384.

The previous prime is 20211202221961. The next prime is 20211202222061. The reversal of 20211202222011 is 11022220211202.

It is a happy number.

20211202222011 is a `hidden beast` number, since 20 + 211 + 202 + 2 + 220 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (20211202221961) and next prime (20211202222061).

It is not a de Polignac number, because 20211202222011 - 2¹⁰ = 20211202220987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211202222061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132075580 + ... + 132228518.

It is an arithmetic number, because the mean of its divisors is an integer number (657557373200).

Almost surely, 2^{20211202222011} is an apocalyptic number.

20211202222011 is a deficient number, since it is larger than the sum of its proper divisors (11351551691589).

20211202222011 is a wasteful number, since it uses less digits than its factorization.

20211202222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173888 (or 173885 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20211202222011 its reverse (11022220211202), we get a palindrome (31233422433213).

The spelling of 20211202222011 in words is "twenty trillion, two hundred eleven billion, two hundred two million, two hundred twenty-two thousand, eleven".