2002102221020 has 24 divisors (see below), whose sum is σ = 4586634179568. Its totient is φ = 728037171200.

The previous prime is 2002102221017. The next prime is 2002102221037. The reversal of 2002102221020 is 201222012002.

It is a junction number, because it is equal to n+sod(n) for n = 2002102220986 and 2002102221004.

It is a congruent number.

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, 4550232101 + ... + 4550232540.

It is an arithmetic number, because the mean of its divisors is an integer number (191109757482).

Almost surely, 2^{2002102221020} is an apocalyptic number.

2002102221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002102221020 is an abundant number, since it is smaller than the sum of its proper divisors (2584531958548).

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

2002102221020 is a wasteful number, since it uses less digits than its factorization.

2002102221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100464661 (or 9100464659 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2002102221020 its reverse (201222012002), we get a palindrome (2203324233022).

The spelling of 2002102221020 in words is "two trillion, two billion, one hundred two million, two hundred twenty-one thousand, twenty".