1122420142 has 16 divisors (see below), whose sum is σ = 1730337840. Its totient is φ = 545755392.

The previous prime is 1122420139. The next prime is 1122420163. The reversal of 1122420142 is 2410242211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8803 + ... + 48190.

It is an arithmetic number, because the mean of its divisors is an integer number (108146115).

Almost surely, 2^1122420142 is an apocalyptic number.

1122420142 is a deficient number, since it is larger than the sum of its proper divisors (607917698).

1122420142 is a wasteful number, since it uses less digits than its factorization.

1122420142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57267.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1122420142 is about 33502.5393365936. The cubic root of 1122420142 is about 1039.2462925402.

Adding to 1122420142 its reverse (2410242211), we get a palindrome (3532662353).

The spelling of 1122420142 in words is "one billion, one hundred twenty-two million, four hundred twenty thousand, one hundred forty-two".