1002120222220 has 24 divisors (see below), whose sum is σ = 2266333426224. Its totient is φ = 370013620416.

The previous prime is 1002120222209. The next prime is 1002120222269. The reversal of 1002120222220 is 222220212001.

It is a junction number, because it is equal to n+sod(n) for n = 1002120222194 and 1002120222203.

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, 1927154014 + ... + 1927154533.

It is an arithmetic number, because the mean of its divisors is an integer number (94430559426).

Almost surely, 2^{1002120222220} is an apocalyptic number.

1002120222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002120222220 is an abundant number, since it is smaller than the sum of its proper divisors (1264213204004).

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

1002120222220 is a wasteful number, since it uses less digits than its factorization.

1002120222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854308569 (or 3854308567 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1002120222220 its reverse (222220212001), we get a palindrome (1224340434221).

The spelling of 1002120222220 in words is "one trillion, two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twenty".