20103321221002 has 16 divisors (see below), whose sum is σ = 31224546549000. Its totient is φ = 9695799877120.

The previous prime is 20103321220933. The next prime is 20103321221029. The reversal of 20103321221002 is 20012212330102.

It can be written as a sum of positive squares in 4 ways, for example, as 19441670751441 + 661650469561 = 4409271^2 + 813419^2 .

It is a super-2 number, since 2×20103321221002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165148399 + ... + 165270082.

Almost surely, 2^{20103321221002} is an apocalyptic number.

20103321221002 is a deficient number, since it is larger than the sum of its proper divisors (11121225327998).

20103321221002 is a wasteful number, since it uses less digits than its factorization.

20103321221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330419561.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20103321221002 its reverse (20012212330102), we get a palindrome (40115533551104).

The spelling of 20103321221002 in words is "twenty trillion, one hundred three billion, three hundred twenty-one million, two hundred twenty-one thousand, two".