2301221142 has 48 divisors (see below), whose sum is σ = 5586274512. Its totient is φ = 678490560.

The previous prime is 2301221141. The next prime is 2301221147. The reversal of 2301221142 is 2411221032.

It is a happy number.

2301221142 is a `hidden beast` number, since 2 + 301 + 221 + 142 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301221141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149733 + ... + 164384.

It is an arithmetic number, because the mean of its divisors is an integer number (116380719).

Almost surely, 2^2301221142 is an apocalyptic number.

2301221142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2301221142 is an abundant number, since it is smaller than the sum of its proper divisors (3285053370).

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

2301221142 is a wasteful number, since it uses less digits than its factorization.

2301221142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314173 (or 314170 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2301221142 is about 47971.0448291467. The cubic root of 2301221142 is about 1320.2396913217.

Adding to 2301221142 its reverse (2411221032), we get a palindrome (4712442174).

The spelling of 2301221142 in words is "two billion, three hundred one million, two hundred twenty-one thousand, one hundred forty-two".