221413350453774 has 32 divisors (see below), whose sum is σ = 443310928784640. Its totient is φ = 73723748217600.

The previous prime is 221413350453767. The next prime is 221413350453829. The reversal of 221413350453774 is 477354053314122.

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, 361284789 + ... + 361897119.

It is an arithmetic number, because the mean of its divisors is an integer number (13853466524520).

Almost surely, 2^{221413350453774} is an apocalyptic number.

221413350453774 is an abundant number, since it is smaller than the sum of its proper divisors (221897578330866).

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

221413350453774 is a wasteful number, since it uses less digits than its factorization.

221413350453774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678136.

The product of its (nonzero) digits is 8467200, while the sum is 51.

The spelling of 221413350453774 in words is "two hundred twenty-one trillion, four hundred thirteen billion, three hundred fifty million, four hundred fifty-three thousand, seven hundred seventy-four".