10001000221204 has 6 divisors (see below), whose sum is σ = 17501750387114. Its totient is φ = 5000500110600.

The previous prime is 10001000221141. The next prime is 10001000221207. The reversal of 10001000221204 is 40212200010001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9865504083600 + 135496137604 = 3140940^2 + 368098^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001000221207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250125027647 + ... + 1250125027654.

Almost surely, 2^{10001000221204} is an apocalyptic number.

It is an amenable number.

10001000221204 is a deficient number, since it is larger than the sum of its proper divisors (7500750165910).

10001000221204 is a wasteful number, since it uses less digits than its factorization.

10001000221204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500250055305 (or 2500250055303 counting only the distinct ones).

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

Adding to 10001000221204 its reverse (40212200010001), we get a palindrome (50213200231205).

The spelling of 10001000221204 in words is "ten trillion, one billion, two hundred twenty-one thousand, two hundred four".