20112010121 has 8 divisors (see below), whose sum is σ = 23027179200. Its totient is φ = 17207347248.

The previous prime is 20112010111. The next prime is 20112010141. The reversal of 20112010121 is 12101021102.

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

It is not a de Polignac number, because 20112010121 - 2⁶ = 20112010057 is a prime.

It is a super-2 number, since 2×20112010121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112010111) 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, 2622446 + ... + 2630103.

It is an arithmetic number, because the mean of its divisors is an integer number (2878397400).

Almost surely, 2^20112010121 is an apocalyptic number.

It is an amenable number.

20112010121 is a deficient number, since it is larger than the sum of its proper divisors (2915169079).

20112010121 is an equidigital number, since it uses as much as digits as its factorization.

20112010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253103.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20112010121 its reverse (12101021102), we get a palindrome (32213031223).

The spelling of 20112010121 in words is "twenty billion, one hundred twelve million, ten thousand, one hundred twenty-one".