202021221122 has 8 divisors (see below), whose sum is σ = 346322093376. Its totient is φ = 86580523332.

The previous prime is 202021221107. The next prime is 202021221139. The reversal of 202021221122 is 221122120202.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 202021221122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7215043598 + ... + 7215043625.

It is an arithmetic number, because the mean of its divisors is an integer number (43290261672).

Almost surely, 2^202021221122 is an apocalyptic number.

202021221122 is a deficient number, since it is larger than the sum of its proper divisors (144300872254).

202021221122 is a wasteful number, since it uses less digits than its factorization.

202021221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14430087232.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202021221122 its reverse (221122120202), we get a palindrome (423143341324).

The spelling of 202021221122 in words is "two hundred two billion, twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".