221411706474453 has 32 divisors (see below), whose sum is σ = 341244630421632. Its totient is φ = 126203994931200.

The previous prime is 221411706474443. The next prime is 221411706474461. The reversal of 221411706474453 is 354474607114122.

It is not a de Polignac number, because 221411706474453 - 2⁹ = 221411706473941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 221411706474396 and 221411706474405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221411706474443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142119276 + ... + 143668757.

It is an arithmetic number, because the mean of its divisors is an integer number (10663894700676).

Almost surely, 2^{221411706474453} is an apocalyptic number.

It is an amenable number.

221411706474453 is a deficient number, since it is larger than the sum of its proper divisors (119832923947179).

221411706474453 is a wasteful number, since it uses less digits than its factorization.

221411706474453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285789445.

The product of its (nonzero) digits is 4515840, while the sum is 51.

The spelling of 221411706474453 in words is "two hundred twenty-one trillion, four hundred eleven billion, seven hundred six million, four hundred seventy-four thousand, four hundred fifty-three".