221023110040 has 16 divisors (see below), whose sum is σ = 497301997680. Its totient is φ = 88409244000.

The previous prime is 221023109999. The next prime is 221023110041. The reversal of 221023110040 is 40011320122.

It is a junction number, because it is equal to n+sod(n) for n = 221023109996 and 221023110023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221023110041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2762788836 + ... + 2762788915.

It is an arithmetic number, because the mean of its divisors is an integer number (31081374855).

Almost surely, 2^221023110040 is an apocalyptic number.

221023110040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221023110040 is an abundant number, since it is smaller than the sum of its proper divisors (276278887640).

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

221023110040 is a wasteful number, since it uses less digits than its factorization.

221023110040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525577762 (or 5525577758 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221023110040 its reverse (40011320122), we get a palindrome (261034430162).

The spelling of 221023110040 in words is "two hundred twenty-one billion, twenty-three million, one hundred ten thousand, forty".