202121022 has 8 divisors (see below), whose sum is σ = 404242056. Its totient is φ = 67373672.

The previous prime is 202120979. The next prime is 202121053. The reversal of 202121022 is 220121202.

202121022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

202121022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 202120989 and 202121007.

It is a congruent number.

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, 16843413 + ... + 16843424.

It is an arithmetic number, because the mean of its divisors is an integer number (50530257).

Almost surely, 2^202121022 is an apocalyptic number.

202121022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

202121022 is a wasteful number, since it uses less digits than its factorization.

202121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33686842.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 202121022 is about 14216.9273051528. The cubic root of 202121022 is about 586.8635843926.

Adding to 202121022 its reverse (220121202), we get a palindrome (422242224).

The spelling of 202121022 in words is "two hundred two million, one hundred twenty-one thousand, twenty-two".