21022100020010 has 64 divisors (see below), whose sum is σ = 41267060305920. Its totient is φ = 7689810696960.

The previous prime is 21022100019997. The next prime is 21022100020037. The reversal of 21022100020010 is 1002000122012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21022100019973 and 21022100020000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24453929 + ... + 25298988.

It is an arithmetic number, because the mean of its divisors is an integer number (644797817280).

Almost surely, 2^{21022100020010} is an apocalyptic number.

21022100020010 is a deficient number, since it is larger than the sum of its proper divisors (20244960285910).

21022100020010 is a wasteful number, since it uses less digits than its factorization.

21022100020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49753031.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21022100020010 its reverse (1002000122012), we get a palindrome (22024100142022).

The spelling of 21022100020010 in words is "twenty-one trillion, twenty-two billion, one hundred million, twenty thousand, ten".