2021102002122 has 256 divisors, whose sum is σ = 5007674327040. Its totient is φ = 530746675200.

The previous prime is 2021102002099. The next prime is 2021102002133. The reversal of 2021102002122 is 2212002011202.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4384168972 + ... + 4384169432.

It is an arithmetic number, because the mean of its divisors is an integer number (19561227840).

Almost surely, 2^{2021102002122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021102002122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2503837163520).

2021102002122 is an abundant number, since it is smaller than the sum of its proper divisors (2986572324918).

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

2021102002122 is a wasteful number, since it uses less digits than its factorization.

2021102002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2021102002122 its reverse (2212002011202), we get a palindrome (4233104013324).

The spelling of 2021102002122 in words is "two trillion, twenty-one billion, one hundred two million, two thousand, one hundred twenty-two".