1201141421240 has 128 divisors (see below), whose sum is σ = 2878437720960. Its totient is φ = 449528070144.

The previous prime is 1201141421237. The next prime is 1201141421321. The reversal of 1201141421240 is 421241411021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262083989 + ... + 262088571.

It is an arithmetic number, because the mean of its divisors is an integer number (22487794695).

Almost surely, 2^{1201141421240} is an apocalyptic number.

1201141421240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201141421240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1439218860480).

1201141421240 is an abundant number, since it is smaller than the sum of its proper divisors (1677296299720).

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

1201141421240 is a wasteful number, since it uses less digits than its factorization.

1201141421240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6801 (or 6797 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 1201141421240 its reverse (421241411021), we get a palindrome (1622382832261).

The spelling of 1201141421240 in words is "one trillion, two hundred one billion, one hundred forty-one million, four hundred twenty-one thousand, two hundred forty".