221002220100102 has 48 divisors (see below), whose sum is σ = 526709123890992. Its totient is φ = 61603406296320.

The previous prime is 221002220100071. The next prime is 221002220100131. The reversal of 221002220100102 is 201001022200122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9167161503 + ... + 9167185610.

It is an arithmetic number, because the mean of its divisors is an integer number (10973106747729).

Almost surely, 2^{221002220100102} is an apocalyptic number.

221002220100102 is an abundant number, since it is smaller than the sum of its proper divisors (305706903790890).

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

221002220100102 is a wasteful number, since it uses less digits than its factorization.

221002220100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18334347173 (or 18334347166 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221002220100102 its reverse (201001022200122), we get a palindrome (422003242300224).

The spelling of 221002220100102 in words is "two hundred twenty-one trillion, two billion, two hundred twenty million, one hundred thousand, one hundred two".