221412435741512 has 8 divisors (see below), whose sum is σ = 415148317015350. Its totient is φ = 110706217870752.

The previous prime is 221412435741509. The next prime is 221412435741587. The reversal of 221412435741512 is 215147534214122.

It is a happy number.

221412435741512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 175798270103236 + 45614165638276 = 13258894^2 + 6753826^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×221412435741512² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13838277233837 + ... + 13838277233852.

Almost surely, 2^{221412435741512} is an apocalyptic number.

It is an amenable number.

221412435741512 is a deficient number, since it is larger than the sum of its proper divisors (193735881273838).

221412435741512 is a wasteful number, since it uses less digits than its factorization.

221412435741512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27676554467695 (or 27676554467691 counting only the distinct ones).

The product of its digits is 537600, while the sum is 44.

Adding to 221412435741512 its reverse (215147534214122), we get a palindrome (436559969955634).

The spelling of 221412435741512 in words is "two hundred twenty-one trillion, four hundred twelve billion, four hundred thirty-five million, seven hundred forty-one thousand, five hundred twelve".