2021055000012 has 288 divisors, whose sum is σ = 5523350152320. Its totient is φ = 620872335360.

The previous prime is 2021055000007. The next prime is 2021055000017. The reversal of 2021055000012 is 2100005501202.

It is an interprime number because it is at equal distance from previous prime (2021055000007) and next prime (2021055000017).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2021055000017) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2628159564 + ... + 2628160332.

It is an arithmetic number, because the mean of its divisors is an integer number (19178299140).

Almost surely, 2^{2021055000012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021055000012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2761675076160).

2021055000012 is an abundant number, since it is smaller than the sum of its proper divisors (3502295152308).

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

2021055000012 is a wasteful number, since it uses less digits than its factorization.

2021055000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The spelling of 2021055000012 in words is "two trillion, twenty-one billion, fifty-five million, twelve", and thus it is an aban number and an uban number.