20220221020210 has 8 divisors (see below), whose sum is σ = 36396397836396. Its totient is φ = 8088088408080.

The previous prime is 20220221020171. The next prime is 20220221020243. The reversal of 20220221020210 is 1202012202202.

It can be written as a sum of positive squares in 2 ways, for example, as 18274009085721 + 1946211934489 = 4274811^2 + 1395067^2 .

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

It is a super-2 number, since 2×20220221020210² (a number of 27 digits) contains 22 as substring.

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, 1011011051001 + ... + 1011011051020.

Almost surely, 2^{20220221020210} is an apocalyptic number.

20220221020210 is a deficient number, since it is larger than the sum of its proper divisors (16176176816186).

20220221020210 is a wasteful number, since it uses less digits than its factorization.

20220221020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022022102028.

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

Adding to 20220221020210 its reverse (1202012202202), we get a palindrome (21422233222412).

The spelling of 20220221020210 in words is "twenty trillion, two hundred twenty billion, two hundred twenty-one million, twenty thousand, two hundred ten".