20121202020111 has 8 divisors (see below), whose sum is σ = 26858721428784. Its totient is φ = 13398908645760.

The previous prime is 20121202020079. The next prime is 20121202020119. The reversal of 20121202020111 is 11102020212102.

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

It is not a de Polignac number, because 20121202020111 - 2⁵ = 20121202020079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121202020119) 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, 3806505496 + ... + 3806510781.

It is an arithmetic number, because the mean of its divisors is an integer number (3357340178598).

Almost surely, 2^{20121202020111} is an apocalyptic number.

20121202020111 is a deficient number, since it is larger than the sum of its proper divisors (6737519408673).

20121202020111 is an equidigital number, since it uses as much as digits as its factorization.

20121202020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7613017161.

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

Adding to 20121202020111 its reverse (11102020212102), we get a palindrome (31223222232213).

The spelling of 20121202020111 in words is "twenty trillion, one hundred twenty-one billion, two hundred two million, twenty thousand, one hundred eleven".