221002211010020 has 96 divisors (see below), whose sum is σ = 507127216974336. Its totient is φ = 80232563520000.

The previous prime is 221002211010019. The next prime is 221002211010083. The reversal of 221002211010020 is 20010112200122.

It is a junction number, because it is equal to n+sod(n) for n = 221002211009977 and 221002211010004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 537255062 + ... + 537666258.

It is an arithmetic number, because the mean of its divisors is an integer number (5282575176816).

Almost surely, 2^{221002211010020} is an apocalyptic number.

221002211010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002211010020 is an abundant number, since it is smaller than the sum of its proper divisors (286125005964316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221002211010020 is a wasteful number, since it uses less digits than its factorization.

221002211010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415221 (or 415219 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221002211010020 its reverse (20010112200122), we get a palindrome (241012323210142).

The spelling of 221002211010020 in words is "two hundred twenty-one trillion, two billion, two hundred eleven million, ten thousand, twenty".