221007467445 has 16 divisors (see below), whose sum is σ = 353617797120. Its totient is φ = 117868699584.

The previous prime is 221007467423. The next prime is 221007467467. The reversal of 221007467445 is 544764700122.

It is an interprime number because it is at equal distance from previous prime (221007467423) and next prime (221007467467).

It is not a de Polignac number, because 221007467445 - 2⁵ = 221007467413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221007467397 and 221007467406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1600332 + ... + 1732938.

It is an arithmetic number, because the mean of its divisors is an integer number (22101112320).

Almost surely, 2^221007467445 is an apocalyptic number.

It is an amenable number.

221007467445 is a deficient number, since it is larger than the sum of its proper divisors (132610329675).

221007467445 is a wasteful number, since it uses less digits than its factorization.

221007467445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243724.

The product of its (nonzero) digits is 376320, while the sum is 42.

The spelling of 221007467445 in words is "two hundred twenty-one billion, seven million, four hundred sixty-seven thousand, four hundred forty-five".