221034012040 has 32 divisors (see below), whose sum is σ = 507907946880. Its totient is φ = 86532463552.

The previous prime is 221034012037. The next prime is 221034012061. The reversal of 221034012040 is 40210430122.

It is a junction number, because it is equal to n+sod(n) for n = 221034011999 and 221034012017.

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, 58783762 + ... + 58787521.

It is an arithmetic number, because the mean of its divisors is an integer number (15872123340).

Almost surely, 2^221034012040 is an apocalyptic number.

221034012040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221034012040 is an abundant number, since it is smaller than the sum of its proper divisors (286873934840).

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

221034012040 is a wasteful number, since it uses less digits than its factorization.

221034012040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117571341 (or 117571337 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 221034012040 its reverse (40210430122), we get a palindrome (261244442162).

The spelling of 221034012040 in words is "two hundred twenty-one billion, thirty-four million, twelve thousand, forty".