221062115040 has 192 divisors, whose sum is σ = 789380121600. Its totient is φ = 51551299584.

The previous prime is 221062114963. The next prime is 221062115041. The reversal of 221062115040 is 40511260122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 221062115040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221062115041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 813720 + ... + 1050839.

It is an arithmetic number, because the mean of its divisors is an integer number (4111354800).

Almost surely, 2^221062115040 is an apocalyptic number.

221062115040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221062115040 is an abundant number, since it is smaller than the sum of its proper divisors (568318006560).

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

221062115040 is a wasteful number, since it uses less digits than its factorization.

221062115040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864609 (or 1864601 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 221062115040 its reverse (40511260122), we get a palindrome (261573375162).

The spelling of 221062115040 in words is "two hundred twenty-one billion, sixty-two million, one hundred fifteen thousand, forty".