1202222111100 has 36 divisors (see below), whose sum is σ = 3478429308984. Its totient is φ = 320592562880.

The previous prime is 1202222111081. The next prime is 1202222111147. The reversal of 1202222111100 is 11112222021.

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 1202222111100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2003703219 + ... + 2003703818.

Almost surely, 2^{1202222111100} is an apocalyptic number.

1202222111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202222111100 is an abundant number, since it is smaller than the sum of its proper divisors (2276207197884).

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

1202222111100 is a wasteful number, since it uses less digits than its factorization.

1202222111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007407054 (or 4007407047 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1202222111100 its reverse (11112222021), we get a palindrome (1213334333121).

It can be divided in two parts, 120222 and 2111100, that added together give a palindrome (2231322).

The spelling of 1202222111100 in words is "one trillion, two hundred two billion, two hundred twenty-two million, one hundred eleven thousand, one hundred".