221220041340102 has 128 divisors (see below), whose sum is σ = 510987286425600. Its totient is φ = 62541662198400.

The previous prime is 221220041340101. The next prime is 221220041340121. The reversal of 221220041340102 is 201043140022122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221220041340101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9563779077 + ... + 9563802207.

It is an arithmetic number, because the mean of its divisors is an integer number (3992088175200).

Almost surely, 2^{221220041340102} is an apocalyptic number.

221220041340102 is an abundant number, since it is smaller than the sum of its proper divisors (289767245085498).

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

221220041340102 is a wasteful number, since it uses less digits than its factorization.

221220041340102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29562.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 221220041340102 its reverse (201043140022122), we get a palindrome (422263181362224).

The spelling of 221220041340102 in words is "two hundred twenty-one trillion, two hundred twenty billion, forty-one million, three hundred forty thousand, one hundred two".