1002101222220 has 96 divisors (see below), whose sum is σ = 3254585553408. Its totient is φ = 225633019392.

The previous prime is 1002101222173. The next prime is 1002101222279. The reversal of 1002101222220 is 222221012001.

1002101222220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1002101222220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17777497 + ... + 17833776.

It is an arithmetic number, because the mean of its divisors is an integer number (33901932848).

Almost surely, 2^{1002101222220} is an apocalyptic number.

1002101222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002101222220 is an abundant number, since it is smaller than the sum of its proper divisors (2252484331188).

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

1002101222220 is a wasteful number, since it uses less digits than its factorization.

1002101222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35611359 (or 35611357 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1002101222220 its reverse (222221012001), we get a palindrome (1224322234221).

The spelling of 1002101222220 in words is "one trillion, two billion, one hundred one million, two hundred twenty-two thousand, two hundred twenty".