12100001121020 has 24 divisors (see below), whose sum is σ = 25444668145344. Its totient is φ = 4833397440576.

The previous prime is 12100001121007. The next prime is 12100001121067. The reversal of 12100001121020 is 2012110000121.

It is a junction number, because it is equal to n+sod(n) for n = 12100001120992 and 12100001121010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412672964 + ... + 412702283.

It is an arithmetic number, because the mean of its divisors is an integer number (1060194506056).

Almost surely, 2^{12100001121020} is an apocalyptic number.

12100001121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100001121020 is an abundant number, since it is smaller than the sum of its proper divisors (13344667024324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12100001121020 is a wasteful number, since it uses less digits than its factorization.

12100001121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825375989 (or 825375987 counting only the distinct ones).

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

Adding to 12100001121020 its reverse (2012110000121), we get a palindrome (14112111121141).

The spelling of 12100001121020 in words is "twelve trillion, one hundred billion, one million, one hundred twenty-one thousand, twenty".