21022001120010 has 192 divisors, whose sum is σ = 55512581451264. Its totient is φ = 5052661680000.

The previous prime is 21022001119969. The next prime is 21022001120027. The reversal of 21022001120010 is 1002110022012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22198522357 + ... + 22198523303.

It is an arithmetic number, because the mean of its divisors is an integer number (289128028392).

Almost surely, 2^{21022001120010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21022001120010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27756290725632).

21022001120010 is an abundant number, since it is smaller than the sum of its proper divisors (34490580331254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21022001120010 is a wasteful number, since it uses less digits than its factorization.

21022001120010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449 (or 1502 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21022001120010 its reverse (1002110022012), we get a palindrome (22024111142022).

The spelling of 21022001120010 in words is "twenty-one trillion, twenty-two billion, one million, one hundred twenty thousand, ten".