221283670134704 has 80 divisors (see below), whose sum is σ = 457207411227840. Its totient is φ = 103388601139200.

The previous prime is 221283670134673. The next prime is 221283670134749. The reversal of 221283670134704 is 407431076382122.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75489602 + ... + 78366110.

It is an arithmetic number, because the mean of its divisors is an integer number (5715092640348).

Almost surely, 2^{221283670134704} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221283670134704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228603705613920).

221283670134704 is an abundant number, since it is smaller than the sum of its proper divisors (235923741093136).

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

221283670134704 is a wasteful number, since it uses less digits than its factorization.

221283670134704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878558 (or 2878552 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 221283670134704 in words is "two hundred twenty-one trillion, two hundred eighty-three billion, six hundred seventy million, one hundred thirty-four thousand, seven hundred four".