2021002121202 has 16 divisors (see below), whose sum is σ = 4043919002112. Its totient is φ = 673348247120.

The previous prime is 2021002121197. The next prime is 2021002121207. The reversal of 2021002121202 is 2021212001202.

It is an interprime number because it is at equal distance from previous prime (2021002121197) and next prime (2021002121207).

It is not an unprimeable number, because it can be changed into a prime (2021002121207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79767933 + ... + 79793264.

It is an arithmetic number, because the mean of its divisors is an integer number (252744937632).

Almost surely, 2^{2021002121202} is an apocalyptic number.

2021002121202 is an abundant number, since it is smaller than the sum of its proper divisors (2022916880910).

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

2021002121202 is a wasteful number, since it uses less digits than its factorization.

2021002121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159563313.

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

Adding to 2021002121202 its reverse (2021212001202), we get a palindrome (4042214122404).

The spelling of 2021002121202 in words is "two trillion, twenty-one billion, two million, one hundred twenty-one thousand, two hundred two".