22202001010021 has 48 divisors (see below), whose sum is σ = 27618381820800. Its totient is φ = 17733173971968.

The previous prime is 22202001010009. The next prime is 22202001010073. The reversal of 22202001010021 is 12001010020222.

It is a happy number.

It is not a de Polignac number, because 22202001010021 - 2⁹ = 22202001009509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22202001009983 and 22202001010010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202002010021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42995200 + ... + 43508518.

It is an arithmetic number, because the mean of its divisors is an integer number (575382954600).

Almost surely, 2^{22202001010021} is an apocalyptic number.

It is an amenable number.

22202001010021 is a deficient number, since it is larger than the sum of its proper divisors (5416380810779).

22202001010021 is a wasteful number, since it uses less digits than its factorization.

22202001010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513866 (or 513859 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22202001010021 its reverse (12001010020222), we get a palindrome (34203011030243).

The spelling of 22202001010021 in words is "twenty-two trillion, two hundred two billion, one million, ten thousand, twenty-one".