10021221034402 has 4 divisors (see below), whose sum is σ = 15031831551606. Its totient is φ = 5010610517200.

The previous prime is 10021221034327. The next prime is 10021221034453. The reversal of 10021221034402 is 20443012212001.

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., 7970170276201 + 2051050758201 = 2823149^2 + 1432149^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505305258599 + ... + 2505305258602.

Almost surely, 2^{10021221034402} is an apocalyptic number.

10021221034402 is a deficient number, since it is larger than the sum of its proper divisors (5010610517204).

10021221034402 is an equidigital number, since it uses as much as digits as its factorization.

10021221034402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010610517203.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10021221034402 its reverse (20443012212001), we get a palindrome (30464233246403).

The spelling of 10021221034402 in words is "ten trillion, twenty-one billion, two hundred twenty-one million, thirty-four thousand, four hundred two".