2102002120220 has 48 divisors (see below), whose sum is σ = 4519149516000. Its totient is φ = 821002602240.

The previous prime is 2102002120201. The next prime is 2102002120243. The reversal of 2102002120220 is 220212002012.

It is a junction number, because it is equal to n+sod(n) for n = 2102002120195 and 2102002120204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5801891 + ... + 6153530.

It is an arithmetic number, because the mean of its divisors is an integer number (94148948250).

Almost surely, 2^{2102002120220} is an apocalyptic number.

2102002120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102002120220 is an abundant number, since it is smaller than the sum of its proper divisors (2417147395780).

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

2102002120220 is a wasteful number, since it uses less digits than its factorization.

2102002120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11955638 (or 11955636 counting only the distinct ones).

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

Adding to 2102002120220 its reverse (220212002012), we get a palindrome (2322214122232).

It can be divided in two parts, 2102002 and 120220, that added together give a palindrome (2222222).

The spelling of 2102002120220 in words is "two trillion, one hundred two billion, two million, one hundred twenty thousand, two hundred twenty".