20010201222111 has 8 divisors (see below), whose sum is σ = 27078481256064. Its totient is φ = 13141027668120.

The previous prime is 20010201222073. The next prime is 20010201222161. The reversal of 20010201222111 is 11122210201002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20010201222111 - 2³⁸ = 19735323315167 is a prime.

It is a super-3 number, since 3×20010201222111³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010201222161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49776619755 + ... + 49776620156.

It is an arithmetic number, because the mean of its divisors is an integer number (3384810157008).

Almost surely, 2^{20010201222111} is an apocalyptic number.

20010201222111 is a deficient number, since it is larger than the sum of its proper divisors (7068280033953).

20010201222111 is an equidigital number, since it uses as much as digits as its factorization.

20010201222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99553239981.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20010201222111 its reverse (11122210201002), we get a palindrome (31132411423113).

The spelling of 20010201222111 in words is "twenty trillion, ten billion, two hundred one million, two hundred twenty-two thousand, one hundred eleven".