1120121211100 has 18 divisors (see below), whose sum is σ = 2430663028304. Its totient is φ = 448048484400.

The previous prime is 1120121211089. The next prime is 1120121211101. The reversal of 1120121211100 is 11121210211.

It is a happy number.

It is a super-2 number, since 2×1120121211100² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120121211101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5600605956 + ... + 5600606155.

Almost surely, 2^{1120121211100} is an apocalyptic number.

1120121211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120121211100 is an abundant number, since it is smaller than the sum of its proper divisors (1310541817204).

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

1120121211100 is a wasteful number, since it uses less digits than its factorization.

1120121211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11201212125 (or 11201212118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1120121211100 its reverse (11121210211), we get a palindrome (1131242421311).

The spelling of 1120121211100 in words is "one trillion, one hundred twenty billion, one hundred twenty-one million, two hundred eleven thousand, one hundred".