20112201042 has 16 divisors (see below), whose sum is σ = 40231199232. Its totient is φ = 6702934160.

The previous prime is 20112201013. The next prime is 20112201059. The reversal of 20112201042 is 24010221102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244338 + ... + 316109.

It is an arithmetic number, because the mean of its divisors is an integer number (2514449952).

Almost surely, 2^20112201042 is an apocalyptic number.

20112201042 is an abundant number, since it is smaller than the sum of its proper divisors (20118998190).

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

20112201042 is a wasteful number, since it uses less digits than its factorization.

20112201042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566433.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20112201042 its reverse (24010221102), we get a palindrome (44122422144).

The spelling of 20112201042 in words is "twenty billion, one hundred twelve million, two hundred one thousand, forty-two".