205842422120 has 32 divisors (see below), whose sum is σ = 469008057600. Its totient is φ = 81294727488.

The previous prime is 205842422087. The next prime is 205842422143. The reversal of 205842422120 is 21224248502.

It is a super-2 number, since 2×205842422120² (a number of 23 digits) contains 22 as substring.

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, 32566844 + ... + 32573163.

It is an arithmetic number, because the mean of its divisors is an integer number (14656501800).

Almost surely, 2^205842422120 is an apocalyptic number.

205842422120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205842422120 is an abundant number, since it is smaller than the sum of its proper divisors (263165635480).

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

205842422120 is a wasteful number, since it uses less digits than its factorization.

205842422120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65140097 (or 65140093 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 32.

The spelling of 205842422120 in words is "two hundred five billion, eight hundred forty-two million, four hundred twenty-two thousand, one hundred twenty".