20012210121101 has 16 divisors (see below), whose sum is σ = 23118044770368. Its totient is φ = 17121015648000.

The previous prime is 20012210121031. The next prime is 20012210121161. The reversal of 20012210121101 is 10112101221002.

It is not a de Polignac number, because 20012210121101 - 2³⁰ = 20011136379277 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 (20012210121161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3552875 + ... + 7255848.

It is an arithmetic number, because the mean of its divisors is an integer number (1444877798148).

Almost surely, 2^{20012210121101} is an apocalyptic number.

It is an amenable number.

20012210121101 is a deficient number, since it is larger than the sum of its proper divisors (3105834649267).

20012210121101 is a wasteful number, since it uses less digits than its factorization.

20012210121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10818652.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20012210121101 its reverse (10112101221002), we get a palindrome (30124311342103).

The spelling of 20012210121101 in words is "twenty trillion, twelve billion, two hundred ten million, one hundred twenty-one thousand, one hundred one".