20020110012121 has 8 divisors (see below), whose sum is σ = 21055843033344. Its totient is φ = 19008747179760.

The previous prime is 20020110012113. The next prime is 20020110012139. The reversal of 20020110012121 is 12121001102002.

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 20020110012121 - 2³ = 20020110012113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021110012121) 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, 6092545531 + ... + 6092548816.

It is an arithmetic number, because the mean of its divisors is an integer number (2631980379168).

Almost surely, 2^{20020110012121} is an apocalyptic number.

It is an amenable number.

20020110012121 is a deficient number, since it is larger than the sum of its proper divisors (1035733021223).

20020110012121 is a wasteful number, since it uses less digits than its factorization.

20020110012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12185094431.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20020110012121 its reverse (12121001102002), we get a palindrome (32141111114123).

The spelling of 20020110012121 in words is "twenty trillion, twenty billion, one hundred ten million, twelve thousand, one hundred twenty-one".