1121220100212 has 12 divisors (see below), whose sum is σ = 2616180233856. Its totient is φ = 373740033400.

The previous prime is 1121220100181. The next prime is 1121220100307. The reversal of 1121220100212 is 2120010221211.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1121220100191 and 1121220100200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46717504164 + ... + 46717504187.

It is an arithmetic number, because the mean of its divisors is an integer number (218015019488).

Almost surely, 2^{1121220100212} is an apocalyptic number.

1121220100212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121220100212 is an abundant number, since it is smaller than the sum of its proper divisors (1494960133644).

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

1121220100212 is a wasteful number, since it uses less digits than its factorization.

1121220100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93435008358 (or 93435008356 counting only the distinct ones).

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

Adding to 1121220100212 its reverse (2120010221211), we get a palindrome (3241230321423).

The spelling of 1121220100212 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, one hundred thousand, two hundred twelve".