2021202122 has 4 divisors (see below), whose sum is σ = 3031803186. Its totient is φ = 1010601060.

The previous prime is 2021202109. The next prime is 2021202137. The reversal of 2021202122 is 2212021202.

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., 1996391761 + 24810361 = 44681^2 + 4981^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2021202097 and 2021202106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505300529 + ... + 505300532.

Almost surely, 2^2021202122 is an apocalyptic number.

2021202122 is a deficient number, since it is larger than the sum of its proper divisors (1010601064).

2021202122 is a wasteful number, since it uses less digits than its factorization.

2021202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010601063.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2021202122 is about 44957.7815511397. The cubic root of 2021202122 is about 1264.3575759734.

Adding to 2021202122 its reverse (2212021202), we get a palindrome (4233223324).

The spelling of 2021202122 in words is "two billion, twenty-one million, two hundred two thousand, one hundred twenty-two".