2021121000112 has 20 divisors (see below), whose sum is σ = 3965490572320. Its totient is φ = 997768594368.

The previous prime is 2021121000091. The next prime is 2021121000113. The reversal of 2021121000112 is 2110001211202.

It is a super-2 number, since 2×2021121000112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021121000092 and 2021121000101.

It is not an unprimeable number, because it can be changed into a prime (2021121000113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799492803 + ... + 799495330.

It is an arithmetic number, because the mean of its divisors is an integer number (198274528616).

Almost surely, 2^{2021121000112} is an apocalyptic number.

It is an amenable number.

2021121000112 is a deficient number, since it is larger than the sum of its proper divisors (1944369572208).

2021121000112 is a wasteful number, since it uses less digits than its factorization.

2021121000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598988220 (or 1598988214 counting only the distinct ones).

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

Adding to 2021121000112 its reverse (2110001211202), we get a palindrome (4131122211314).

The spelling of 2021121000112 in words is "two trillion, twenty-one billion, one hundred twenty-one million, one hundred twelve", and thus it is an aban number.