1241201242100 has 36 divisors (see below), whose sum is σ = 2693810689248. Its totient is φ = 496406028000.

The previous prime is 1241201242087. The next prime is 1241201242103. The reversal of 1241201242100 is 12421021421.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241201242103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258416 + ... + 1596615.

Almost surely, 2^{1241201242100} is an apocalyptic number.

1241201242100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241201242100 is an abundant number, since it is smaller than the sum of its proper divisors (1452609447148).

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

1241201242100 is a wasteful number, since it uses less digits than its factorization.

1241201242100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861736 (or 1861729 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1241201242100 its reverse (12421021421), we get a palindrome (1253622263521).

The spelling of 1241201242100 in words is "one trillion, two hundred forty-one billion, two hundred one million, two hundred forty-two thousand, one hundred".