1022103221100 has 72 divisors (see below), whose sum is σ = 3184768818000. Its totient is φ = 251594638080.

The previous prime is 1022103221059. The next prime is 1022103221143. The reversal of 1022103221100 is 11223012201.

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 1022103221100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131034975 + ... + 131042774.

It is an arithmetic number, because the mean of its divisors is an integer number (44232900250).

Almost surely, 2^{1022103221100} is an apocalyptic number.

1022103221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022103221100 is an abundant number, since it is smaller than the sum of its proper divisors (2162665596900).

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

1022103221100 is a wasteful number, since it uses less digits than its factorization.

1022103221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262077779 (or 262077772 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1022103221100 its reverse (11223012201), we get a palindrome (1033326233301).

The spelling of 1022103221100 in words is "one trillion, twenty-two billion, one hundred three million, two hundred twenty-one thousand, one hundred".