10202201222021 has 8 divisors (see below), whose sum is σ = 10369560168024. Its totient is φ = 10034845816320.

The previous prime is 10202201221997. The next prime is 10202201222137. The reversal of 10202201222021 is 12022210220201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 503716672900 + 9698484549121 = 709730^2 + 3114239^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-10202201222021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202201222921) 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, 5274365 + ... + 6944301.

It is an arithmetic number, because the mean of its divisors is an integer number (1296195021003).

Almost surely, 2^{10202201222021} is an apocalyptic number.

It is an amenable number.

10202201222021 is a deficient number, since it is larger than the sum of its proper divisors (167358946003).

10202201222021 is a wasteful number, since it uses less digits than its factorization.

10202201222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770151.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10202201222021 its reverse (12022210220201), we get a palindrome (22224411442222).

The spelling of 10202201222021 in words is "ten trillion, two hundred two billion, two hundred one million, two hundred twenty-two thousand, twenty-one".