21220102200104 has 32 divisors (see below), whose sum is σ = 42018203488800. Its totient is φ = 10018885878720.

The previous prime is 21220102200043. The next prime is 21220102200127. The reversal of 21220102200104 is 40100220102212.

It is a super-2 number, since 2×21220102200104² (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, 227324567 + ... + 227417894.

It is an arithmetic number, because the mean of its divisors is an integer number (1313068859025).

Almost surely, 2^{21220102200104} is an apocalyptic number.

It is an amenable number.

21220102200104 is a deficient number, since it is larger than the sum of its proper divisors (20798101288696).

21220102200104 is a wasteful number, since it uses less digits than its factorization.

21220102200104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454742793 (or 454742789 counting only the distinct ones).

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

Adding to 21220102200104 its reverse (40100220102212), we get a palindrome (61320322302316).

The spelling of 21220102200104 in words is "twenty-one trillion, two hundred twenty billion, one hundred two million, two hundred thousand, one hundred four".