221442211242 has 48 divisors (see below), whose sum is σ = 580587988032. Its totient is φ = 59547484800.

The previous prime is 221442211231. The next prime is 221442211337. The reversal of 221442211242 is 242112244122.

221442211242 is a `hidden beast` number, since 2 + 2 + 1 + 442 + 211 + 2 + 4 + 2 = 666.

221442211242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51688384 + ... + 51692667.

It is an arithmetic number, because the mean of its divisors is an integer number (12095583084).

Almost surely, 2^221442211242 is an apocalyptic number.

221442211242 is an abundant number, since it is smaller than the sum of its proper divisors (359145776790).

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

221442211242 is a wasteful number, since it uses less digits than its factorization.

221442211242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103381083 (or 103381080 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

Adding to 221442211242 its reverse (242112244122), we get a palindrome (463554455364).

The spelling of 221442211242 in words is "two hundred twenty-one billion, four hundred forty-two million, two hundred eleven thousand, two hundred forty-two".