221342050154242 has 4 divisors (see below), whose sum is σ = 332013075231366. Its totient is φ = 110671025077120.

The previous prime is 221342050154231. The next prime is 221342050154293. The reversal of 221342050154242 is 242451050243122.

It is a happy number.

221342050154242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 214048048205161 + 7294001949081 = 14630381^2 + 2700741^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55335512538559 + ... + 55335512538562.

Almost surely, 2^{221342050154242} is an apocalyptic number.

221342050154242 is a deficient number, since it is larger than the sum of its proper divisors (110671025077124).

221342050154242 is a wasteful number, since it uses less digits than its factorization.

221342050154242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110671025077123.

The product of its (nonzero) digits is 153600, while the sum is 37.

The spelling of 221342050154242 in words is "two hundred twenty-one trillion, three hundred forty-two billion, fifty million, one hundred fifty-four thousand, two hundred forty-two".