10221201002002 has 4 divisors (see below), whose sum is σ = 15331801503006. Its totient is φ = 5110600501000.

The previous prime is 10221201001997. The next prime is 10221201002029. The reversal of 10221201002002 is 20020010212201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10159333891641 + 61867110361 = 3187371^2 + 248731^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555300250499 + ... + 2555300250502.

Almost surely, 2^{10221201002002} is an apocalyptic number.

10221201002002 is a deficient number, since it is larger than the sum of its proper divisors (5110600501004).

10221201002002 is an equidigital number, since it uses as much as digits as its factorization.

10221201002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110600501003.

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

Adding to 10221201002002 its reverse (20020010212201), we get a palindrome (30241211214203).

The spelling of 10221201002002 in words is "ten trillion, two hundred twenty-one billion, two hundred one million, two thousand, two".