2021022220202 has 4 divisors (see below), whose sum is σ = 3031533330306. Its totient is φ = 1010511110100.

The previous prime is 2021022220201. The next prime is 2021022220303. The reversal of 2021022220202 is 2020222201202.

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., 1907992452601 + 113029767601 = 1381301^2 + 336199^2 .

It is not an unprimeable number, because it can be changed into a prime (2021022220201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505255555049 + ... + 505255555052.

Almost surely, 2^{2021022220202} is an apocalyptic number.

2021022220202 is a deficient number, since it is larger than the sum of its proper divisors (1010511110104).

2021022220202 is a wasteful number, since it uses less digits than its factorization.

2021022220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010511110103.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 2021022220202 its reverse (2020222201202), we get a palindrome (4041244421404).

The spelling of 2021022220202 in words is "two trillion, twenty-one billion, twenty-two million, two hundred twenty thousand, two hundred two".