21022202122010 has 8 divisors (see below), whose sum is σ = 37839963819636. Its totient is φ = 8408880848800.

The previous prime is 21022202122007. The next prime is 21022202122133. The reversal of 21022202122010 is 1022120222012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18098413333729 + 2923788788281 = 4254223^2 + 1709909^2 .

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 21022202122010.

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, 1051110106091 + ... + 1051110106110.

Almost surely, 2^{21022202122010} is an apocalyptic number.

21022202122010 is a deficient number, since it is larger than the sum of its proper divisors (16817761697626).

21022202122010 is a wasteful number, since it uses less digits than its factorization.

21022202122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102220212208.

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

Adding to 21022202122010 its reverse (1022120222012), we get a palindrome (22044322344022).

The spelling of 21022202122010 in words is "twenty-one trillion, twenty-two billion, two hundred two million, one hundred twenty-two thousand, ten".