2112020003121 has 16 divisors (see below), whose sum is σ = 3219515802624. Its totient is φ = 1206418720464.

The previous prime is 2112020003099. The next prime is 2112020003129. The reversal of 2112020003121 is 1213000202112.

It is not a de Polignac number, because 2112020003121 - 2⁷ = 2112020002993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112020003121.

It is not an unprimeable number, because it can be changed into a prime (2112020003129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18686181 + ... + 18798866.

It is an arithmetic number, because the mean of its divisors is an integer number (201219737664).

Almost surely, 2^{2112020003121} is an apocalyptic number.

2112020003121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2112020003121 is a deficient number, since it is larger than the sum of its proper divisors (1107495799503).

2112020003121 is a wasteful number, since it uses less digits than its factorization.

2112020003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37487740.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2112020003121 its reverse (1213000202112), we get a palindrome (3325020205233).

The spelling of 2112020003121 in words is "two trillion, one hundred twelve billion, twenty million, three thousand, one hundred twenty-one".