540012221444 has 24 divisors (see below), whose sum is σ = 963715838400. Its totient is φ = 264690335840.

The previous prime is 540012221429. The next prime is 540012221459. The reversal of 540012221444 is 444122210045.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (540012221429) and next prime (540012221459).

It is a super-2 number, since 2×540012221444² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3102167 + ... + 3271614.

It is an arithmetic number, because the mean of its divisors is an integer number (40154826600).

Almost surely, 2^540012221444 is an apocalyptic number.

It is an amenable number.

540012221444 is a deficient number, since it is larger than the sum of its proper divisors (423703616956).

540012221444 is a wasteful number, since it uses less digits than its factorization.

540012221444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6374203 (or 6374201 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 540012221444 its reverse (444122210045), we get a palindrome (984134431489).

The spelling of 540012221444 in words is "five hundred forty billion, twelve million, two hundred twenty-one thousand, four hundred forty-four".