221500700102 has 16 divisors (see below), whose sum is σ = 365974682112. Its totient is φ = 99704638920.

The previous prime is 221500700101. The next prime is 221500700117. The reversal of 221500700102 is 201007005122.

It is a super-2 number, since 2×221500700102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221500700101) 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, 48872558 + ... + 48877089.

It is an arithmetic number, because the mean of its divisors is an integer number (22873417632).

Almost surely, 2^221500700102 is an apocalyptic number.

221500700102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221500700102 is a deficient number, since it is larger than the sum of its proper divisors (144473982010).

221500700102 is a wasteful number, since it uses less digits than its factorization.

221500700102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97749763.

The product of its (nonzero) digits is 280, while the sum is 20.

Adding to 221500700102 its reverse (201007005122), we get a palindrome (422507705224).

The spelling of 221500700102 in words is "two hundred twenty-one billion, five hundred million, seven hundred thousand, one hundred two".