221030112102 has 16 divisors (see below), whose sum is σ = 461280234240. Its totient is φ = 70473369032.

The previous prime is 221030112101. The next prime is 221030112131. The reversal of 221030112102 is 201211030122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221030112101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800833602 + ... + 800833877.

It is an arithmetic number, because the mean of its divisors is an integer number (28830014640).

Almost surely, 2^221030112102 is an apocalyptic number.

221030112102 is an abundant number, since it is smaller than the sum of its proper divisors (240250122138).

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

221030112102 is a wasteful number, since it uses less digits than its factorization.

221030112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601667507.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 221030112102 its reverse (201211030122), we get a palindrome (422241142224).

The spelling of 221030112102 in words is "two hundred twenty-one billion, thirty million, one hundred twelve thousand, one hundred two".