1242100111210 has 32 divisors (see below), whose sum is σ = 2593314357120. Its totient is φ = 419506731072.

The previous prime is 1242100111169. The next prime is 1242100111211. The reversal of 1242100111210 is 121110012421.

It is a super-3 number, since 3×1242100111210³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1242100111211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132415365 + ... + 132424744.

It is an arithmetic number, because the mean of its divisors is an integer number (81041073660).

Almost surely, 2^{1242100111210} is an apocalyptic number.

1242100111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242100111210 is an abundant number, since it is smaller than the sum of its proper divisors (1351214245910).

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

1242100111210 is a wasteful number, since it uses less digits than its factorization.

1242100111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264840190.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1242100111210 its reverse (121110012421), we get a palindrome (1363210123631).

The spelling of 1242100111210 in words is "one trillion, two hundred forty-two billion, one hundred million, one hundred eleven thousand, two hundred ten".