21122030311010 has 32 divisors (see below), whose sum is σ = 38298279360240. Its totient is φ = 8386899075072.

The previous prime is 21122030311003. The next prime is 21122030311091. The reversal of 21122030311010 is 1011303022112.

It can be written as a sum of positive squares in 8 ways, for example, as 18403525144489 + 2718505166521 = 4289933^2 + 1648789^2 .

It is a super-2 number, since 2×21122030311010² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21122030311010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51467906 + ... + 51876674.

Almost surely, 2^{21122030311010} is an apocalyptic number.

21122030311010 is a deficient number, since it is larger than the sum of its proper divisors (17176249049230).

21122030311010 is a wasteful number, since it uses less digits than its factorization.

21122030311010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446630.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21122030311010 its reverse (1011303022112), we get a palindrome (22133333333122).

The spelling of 21122030311010 in words is "twenty-one trillion, one hundred twenty-two billion, thirty million, three hundred eleven thousand, ten".