20101210222111 has 8 divisors (see below), whose sum is σ = 20137161258720. Its totient is φ = 20065266100992.

The previous prime is 20101210222103. The next prime is 20101210222123. The reversal of 20101210222111 is 11122201210102.

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

It is a cyclic number.

It is not a de Polignac number, because 20101210222111 - 2³ = 20101210222103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101210222141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4107310 + ... + 7554628.

It is an arithmetic number, because the mean of its divisors is an integer number (2517145157340).

Almost surely, 2^{20101210222111} is an apocalyptic number.

20101210222111 is a deficient number, since it is larger than the sum of its proper divisors (35951036609).

20101210222111 is an equidigital number, since it uses as much as digits as its factorization.

20101210222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457745.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20101210222111 its reverse (11122201210102), we get a palindrome (31223411432213).

The spelling of 20101210222111 in words is "twenty trillion, one hundred one billion, two hundred ten million, two hundred twenty-two thousand, one hundred eleven".