2021001010202 has 4 divisors (see below), whose sum is σ = 3031501515306. Its totient is φ = 1010500505100.

The previous prime is 2021001010201. The next prime is 2021001010241. The reversal of 2021001010202 is 2020101001202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1758384733681 + 262616276521 = 1326041^2 + 512461^2 .

It is not an unprimeable number, because it can be changed into a prime (2021001010201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505250252549 + ... + 505250252552.

Almost surely, 2^{2021001010202} is an apocalyptic number.

2021001010202 is a deficient number, since it is larger than the sum of its proper divisors (1010500505104).

2021001010202 is a wasteful number, since it uses less digits than its factorization.

2021001010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010500505103.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2021001010202 its reverse (2020101001202), we get a palindrome (4041102011404).

The spelling of 2021001010202 in words is "two trillion, twenty-one billion, one million, ten thousand, two hundred two".