221134622221044 has 96 divisors (see below), whose sum is σ = 655486820352000. Its totient is φ = 63154983592800.

The previous prime is 221134622221031. The next prime is 221134622221081. The reversal of 221134622221044 is 440122226431122.

221134622221044 is a `hidden beast` number, since 2 + 2 + 1 + 1 + 3 + 4 + 622 + 2 + 21 + 0 + 4 + 4 = 666.

It is a super-2 number, since 2×221134622221044² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59150532 + ... + 62777819.

It is an arithmetic number, because the mean of its divisors is an integer number (6827987712000).

Almost surely, 2^{221134622221044} is an apocalyptic number.

It is an amenable number.

221134622221044 is an abundant number, since it is smaller than the sum of its proper divisors (434352198130956).

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

221134622221044 is a wasteful number, since it uses less digits than its factorization.

221134622221044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121930770 (or 121930762 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

Adding to 221134622221044 its reverse (440122226431122), we get a palindrome (661256848652166).

The spelling of 221134622221044 in words is "two hundred twenty-one trillion, one hundred thirty-four billion, six hundred twenty-two million, two hundred twenty-one thousand, forty-four".