2021121112202 has 4 divisors (see below), whose sum is σ = 3031681668306. Its totient is φ = 1010560556100.

The previous prime is 2021121112189. The next prime is 2021121112211. The reversal of 2021121112202 is 2022111211202.

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., 1978160673841 + 42960438361 = 1406471^2 + 207269^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505280278049 + ... + 505280278052.

Almost surely, 2^{2021121112202} is an apocalyptic number.

2021121112202 is a deficient number, since it is larger than the sum of its proper divisors (1010560556104).

2021121112202 is a wasteful number, since it uses less digits than its factorization.

2021121112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010560556103.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2021121112202 its reverse (2022111211202), we get a palindrome (4043232323404).

The spelling of 2021121112202 in words is "two trillion, twenty-one billion, one hundred twenty-one million, one hundred twelve thousand, two hundred two".