1222202220100 has 36 divisors (see below), whose sum is σ = 2652280371664. Its totient is φ = 488862168480.

The previous prime is 1222202220067. The next prime is 1222202220119. The reversal of 1222202220100 is 10222022221.

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, 2556187 + ... + 2996413.

Almost surely, 2^{1222202220100} is an apocalyptic number.

1222202220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222202220100 is an abundant number, since it is smaller than the sum of its proper divisors (1430078151564).

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

1222202220100 is a wasteful number, since it uses less digits than its factorization.

1222202220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468004 (or 467997 counting only the distinct ones).

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

Adding to 1222202220100 its reverse (10222022221), we get a palindrome (1232424242321).

The spelling of 1222202220100 in words is "one trillion, two hundred twenty-two billion, two hundred two million, two hundred twenty thousand, one hundred".