20121202001111 has 8 divisors (see below), whose sum is σ = 20128426905600. Its totient is φ = 20113978355800.

The previous prime is 20121202001057. The next prime is 20121202001123. The reversal of 20121202001111 is 11110020212102.

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 20121202001111 - 2¹⁴ = 20121201984727 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 (20121202001161) 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, 32252186 + ... + 32870136.

It is an arithmetic number, because the mean of its divisors is an integer number (2516053363200).

Almost surely, 2^{20121202001111} is an apocalyptic number.

20121202001111 is a deficient number, since it is larger than the sum of its proper divisors (7224904489).

20121202001111 is an equidigital number, since it uses as much as digits as its factorization.

20121202001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629589.

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

Adding to 20121202001111 its reverse (11110020212102), we get a palindrome (31231222213213).

The spelling of 20121202001111 in words is "twenty trillion, one hundred twenty-one billion, two hundred two million, one thousand, one hundred eleven".