10121112000021 has 48 divisors (see below), whose sum is σ = 16318471454208. Its totient is φ = 5522175225600.

The previous prime is 10121112000011. The next prime is 10121112000029. The reversal of 10121112000021 is 12000021112101.

It is not a de Polignac number, because 10121112000021 - 2⁷ = 10121111999893 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10121111999970 and 10121112000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121112000029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22851235 + ... + 23289936.

It is an arithmetic number, because the mean of its divisors is an integer number (339968155296).

Almost surely, 2^{10121112000021} is an apocalyptic number.

10121112000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10121112000021 is a deficient number, since it is larger than the sum of its proper divisors (6197359454187).

10121112000021 is a wasteful number, since it uses less digits than its factorization.

10121112000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46141242 (or 46141225 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10121112000021 its reverse (12000021112101), we get a palindrome (22121133112122).

The spelling of 10121112000021 in words is "ten trillion, one hundred twenty-one billion, one hundred twelve million, twenty-one", and thus it is an aban number.