1020021222202 has 8 divisors (see below), whose sum is σ = 1530447953076. Its totient is φ = 509871904512.

The previous prime is 1020021222173. The next prime is 1020021222257. The reversal of 1020021222202 is 2022221200201.

It can be written as a sum of positive squares in 2 ways, for example, as 744701687521 + 275319534681 = 862961^2 + 524709^2 .

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

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, 69344103 + ... + 69358810.

Almost surely, 2^{1020021222202} is an apocalyptic number.

1020021222202 is a deficient number, since it is larger than the sum of its proper divisors (510426730874).

1020021222202 is a wasteful number, since it uses less digits than its factorization.

1020021222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138706592.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1020021222202 its reverse (2022221200201), we get a palindrome (3042242422403).

The spelling of 1020021222202 in words is "one trillion, twenty billion, twenty-one million, two hundred twenty-two thousand, two hundred two".