20210212222011 has 16 divisors (see below), whose sum is σ = 34218348736000. Its totient is φ = 11548692698184.

The previous prime is 20210212222007. The next prime is 20210212222019. The reversal of 20210212222011 is 11022221201202.

It is a happy number.

20210212222011 is a `hidden beast` number, since 20 + 210 + 212 + 2 + 220 + 1 + 1 = 666.

It is not a de Polignac number, because 20210212222011 - 2² = 20210212222007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210212222019) 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, 53466169711 + ... + 53466170088.

It is an arithmetic number, because the mean of its divisors is an integer number (2138646796000).

Almost surely, 2^{20210212222011} is an apocalyptic number.

20210212222011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20210212222011 is a deficient number, since it is larger than the sum of its proper divisors (14008136513989).

20210212222011 is a wasteful number, since it uses less digits than its factorization.

20210212222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106932339815 (or 106932339809 counting only the distinct ones).

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

Adding to 20210212222011 its reverse (11022221201202), we get a palindrome (31232433423213).

The spelling of 20210212222011 in words is "twenty trillion, two hundred ten billion, two hundred twelve million, two hundred twenty-two thousand, eleven".