221242313030 has 16 divisors (see below), whose sum is σ = 399321282240. Its totient is φ = 88255787712.

The previous prime is 221242313027. The next prime is 221242313093. The reversal of 221242313030 is 30313242122.

It is a super-2 number, since 2×221242313030² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221242312987 and 221242313005.

It is a congruent number.

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, 30138335 + ... + 30145674.

It is an arithmetic number, because the mean of its divisors is an integer number (24957580140).

Almost surely, 2^221242313030 is an apocalyptic number.

221242313030 is a deficient number, since it is larger than the sum of its proper divisors (178078969210).

221242313030 is a wasteful number, since it uses less digits than its factorization.

221242313030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60284383.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 221242313030 its reverse (30313242122), we get a palindrome (251555555152).

The spelling of 221242313030 in words is "two hundred twenty-one billion, two hundred forty-two million, three hundred thirteen thousand, thirty".