10221200120021 has 8 divisors (see below), whose sum is σ = 11162174588064. Its totient is φ = 9282188061520.

The previous prime is 10221200119997. The next prime is 10221200120057. The reversal of 10221200120021 is 12002100212201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10221200120021 - 2³⁸ = 9946322213077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221200119978 and 10221200120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221200120071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490591490 + ... + 490612323.

It is an arithmetic number, because the mean of its divisors is an integer number (1395271823508).

Almost surely, 2^{10221200120021} is an apocalyptic number.

10221200120021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10221200120021 is a deficient number, since it is larger than the sum of its proper divisors (940974468043).

10221200120021 is an equidigital number, since it uses as much as digits as its factorization.

10221200120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981204771.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10221200120021 its reverse (12002100212201), we get a palindrome (22223300332222).

The spelling of 10221200120021 in words is "ten trillion, two hundred twenty-one billion, two hundred million, one hundred twenty thousand, twenty-one".