2002002101220 has 96 divisors (see below), whose sum is σ = 6123550608000. Its totient is φ = 484671605760.

The previous prime is 2002002101219. The next prime is 2002002101227. The reversal of 2002002101220 is 221012002002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2002002101196 and 2002002101205.

It is not an unprimeable number, because it can be changed into a prime (2002002101227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1585345 + ... + 2552904.

It is an arithmetic number, because the mean of its divisors is an integer number (63786985500).

Almost surely, 2^{2002002101220} is an apocalyptic number.

2002002101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002002101220 is an abundant number, since it is smaller than the sum of its proper divisors (4121548506780).

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

2002002101220 is a wasteful number, since it uses less digits than its factorization.

2002002101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139005 (or 4139003 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2002002101220 its reverse (221012002002), we get a palindrome (2223014103222).

The spelling of 2002002101220 in words is "two trillion, two billion, two million, one hundred one thousand, two hundred twenty".