212065520044 has 18 divisors (see below), whose sum is σ = 431704809060. Its totient is φ = 90885222792.

The previous prime is 212065520041. The next prime is 212065520087. The reversal of 212065520044 is 440025560212.

It is a junction number, because it is equal to n+sod(n) for n = 212065519988 and 212065520015.

It is not an unprimeable number, because it can be changed into a prime (212065520041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 540983274 + ... + 540983665.

Almost surely, 2^212065520044 is an apocalyptic number.

It is an amenable number.

212065520044 is an abundant number, since it is smaller than the sum of its proper divisors (219639289016).

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

212065520044 is a wasteful number, since it uses less digits than its factorization.

212065520044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081966957 (or 1081966948 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 212065520044 in words is "two hundred twelve billion, sixty-five million, five hundred twenty thousand, forty-four".