2002121112220 has 48 divisors (see below), whose sum is σ = 4491797304960. Its totient is φ = 747374658624.

The previous prime is 2002121112181. The next prime is 2002121112241. The reversal of 2002121112220 is 222111212002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2002121112194 and 2002121112203.

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, 39293494 + ... + 39344413.

It is an arithmetic number, because the mean of its divisors is an integer number (93579110520).

Almost surely, 2^{2002121112220} is an apocalyptic number.

2002121112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002121112220 is an abundant number, since it is smaller than the sum of its proper divisors (2489676192740).

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

2002121112220 is a wasteful number, since it uses less digits than its factorization.

2002121112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78638002 (or 78638000 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2002121112220 its reverse (222111212002), we get a palindrome (2224232324222).

The spelling of 2002121112220 in words is "two trillion, two billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twenty".