221534462021461 has 8 divisors (see below), whose sum is σ = 224966766990240. Its totient is φ = 218105857654608.

The previous prime is 221534462021449. The next prime is 221534462021471. The reversal of 221534462021461 is 164120264435122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221534462021461 - 2¹¹ = 221534462019413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221534462021471) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 925029826 + ... + 925269283.

It is an arithmetic number, because the mean of its divisors is an integer number (28120845873780).

Almost surely, 2^{221534462021461} is an apocalyptic number.

It is an amenable number.

221534462021461 is a deficient number, since it is larger than the sum of its proper divisors (3432304968779).

221534462021461 is a wasteful number, since it uses less digits than its factorization.

221534462021461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850300963.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 221534462021461 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred sixty-two million, twenty-one thousand, four hundred sixty-one".