1222213141100 has 72 divisors (see below), whose sum is σ = 3038289057888. Its totient is φ = 418049049600.

The previous prime is 1222213141087. The next prime is 1222213141139. The reversal of 1222213141100 is 11413122221.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1778957 + ... + 2368356.

Almost surely, 2^{1222213141100} is an apocalyptic number.

1222213141100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222213141100 is an abundant number, since it is smaller than the sum of its proper divisors (1816075916788).

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

1222213141100 is a wasteful number, since it uses less digits than its factorization.

1222213141100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147755 (or 4147748 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1222213141100 its reverse (11413122221), we get a palindrome (1233626263321).

The spelling of 1222213141100 in words is "one trillion, two hundred twenty-two billion, two hundred thirteen million, one hundred forty-one thousand, one hundred".