2021201012146 has 8 divisors (see below), whose sum is σ = 3043598412060. Its totient is φ = 1006668208128.

The previous prime is 2021201012099. The next prime is 2021201012147. The reversal of 2021201012146 is 6412101021202.

It can be written as a sum of positive squares in 2 ways, for example, as 1925558646025 + 95642366121 = 1387645^2 + 309261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2021201012147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1966148331 + ... + 1966149358.

Almost surely, 2^{2021201012146} is an apocalyptic number.

2021201012146 is a deficient number, since it is larger than the sum of its proper divisors (1022397399914).

2021201012146 is a wasteful number, since it uses less digits than its factorization.

2021201012146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932297948.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 2021201012146 its reverse (6412101021202), we get a palindrome (8433302033348).

The spelling of 2021201012146 in words is "two trillion, twenty-one billion, two hundred one million, twelve thousand, one hundred forty-six".