2021022221202 has 24 divisors (see below), whose sum is σ = 4422236745420. Its totient is φ = 667004032800.

The previous prime is 2021022221161. The next prime is 2021022221213. The reversal of 2021022221202 is 2021222201202.

2021022221202 is a `hidden beast` number, since 20 + 210 + 222 + 212 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2020915284921 + 106936281 = 1421589^2 + 10341^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 555834877 + ... + 555838512.

Almost surely, 2^{2021022221202} is an apocalyptic number.

2021022221202 is an abundant number, since it is smaller than the sum of its proper divisors (2401214524218).

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

2021022221202 is a wasteful number, since it uses less digits than its factorization.

2021022221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111673498 (or 1111673495 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2021022221202 its reverse (2021222201202), we get a palindrome (4042244422404).

The spelling of 2021022221202 in words is "two trillion, twenty-one billion, twenty-two million, two hundred twenty-one thousand, two hundred two".