20202111120121 has 8 divisors (see below), whose sum is σ = 23088745929344. Its totient is φ = 17315631044640.

The previous prime is 20202111120017. The next prime is 20202111120157. The reversal of 20202111120121 is 12102111120202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202111120121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202111120095 and 20202111120104.

It is not an unprimeable number, because it can be changed into a prime (20202111120161) 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, 38403525 + ... + 38926018.

It is an arithmetic number, because the mean of its divisors is an integer number (2886093241168).

Almost surely, 2^{20202111120121} is an apocalyptic number.

It is an amenable number.

20202111120121 is a deficient number, since it is larger than the sum of its proper divisors (2886634809223).

20202111120121 is an equidigital number, since it uses as much as digits as its factorization.

20202111120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77366871.

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

Adding to 20202111120121 its reverse (12102111120202), we get a palindrome (32304222240323).

The spelling of 20202111120121 in words is "twenty trillion, two hundred two billion, one hundred eleven million, one hundred twenty thousand, one hundred twenty-one".