1120142221421 has 8 divisors (see below), whose sum is σ = 1179109636320. Its totient is φ = 1061176062672.

The previous prime is 1120142221391. The next prime is 1120142221423. The reversal of 1120142221421 is 1241222410211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120142221421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120142221423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1926191 + ... + 2439363.

It is an arithmetic number, because the mean of its divisors is an integer number (147388704540).

Almost surely, 2^{1120142221421} is an apocalyptic number.

It is an amenable number.

1120142221421 is a deficient number, since it is larger than the sum of its proper divisors (58967414899).

1120142221421 is a wasteful number, since it uses less digits than its factorization.

1120142221421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628075.

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

Adding to 1120142221421 its reverse (1241222410211), we get a palindrome (2361364631632).

The spelling of 1120142221421 in words is "one trillion, one hundred twenty billion, one hundred forty-two million, two hundred twenty-one thousand, four hundred twenty-one".