20210222121010 has 16 divisors (see below), whose sum is σ = 36379332320472. Its totient is φ = 8083881625600.

The previous prime is 20210222120971. The next prime is 20210222121073. The reversal of 20210222121010 is 1012122201202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19966661117649 + 243561003361 = 4468407^2 + 493519^2 .

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 7 ways as a sum of consecutive naturals, for example, 25492921 + ... + 26273740.

Almost surely, 2^{20210222121010} is an apocalyptic number.

20210222121010 is a deficient number, since it is larger than the sum of its proper divisors (16169110199462).

20210222121010 is a wasteful number, since it uses less digits than its factorization.

20210222121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51805709.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20210222121010 its reverse (1012122201202), we get a palindrome (21222344322212).

The spelling of 20210222121010 in words is "twenty trillion, two hundred ten billion, two hundred twenty-two million, one hundred twenty-one thousand, ten".