2021210212202 has 8 divisors (see below), whose sum is σ = 3034820093700. Its totient is φ = 1009603514304.

The previous prime is 2021210212129. The next prime is 2021210212291. The reversal of 2021210212202 is 2022120121202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1705659508081 + 315550704121 = 1306009^2 + 561739^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500793377 + ... + 500797412.

Almost surely, 2^{2021210212202} is an apocalyptic number.

2021210212202 is a deficient number, since it is larger than the sum of its proper divisors (1013609881498).

2021210212202 is a wasteful number, since it uses less digits than its factorization.

2021210212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001591800.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2021210212202 its reverse (2022120121202), we get a palindrome (4043330333404).

The spelling of 2021210212202 in words is "two trillion, twenty-one billion, two hundred ten million, two hundred twelve thousand, two hundred two".