145220224213412 has 48 divisors (see below), whose sum is σ = 264232859282112. Its totient is φ = 69778277521920.

The previous prime is 145220224213411. The next prime is 145220224213487. The reversal of 145220224213412 is 214312422022541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145220224213411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221993603 + ... + 222646805.

It is an arithmetic number, because the mean of its divisors is an integer number (5504851235044).

Almost surely, 2^{145220224213412} is an apocalyptic number.

It is an amenable number.

145220224213412 is a deficient number, since it is larger than the sum of its proper divisors (119012635068700).

145220224213412 is a wasteful number, since it uses less digits than its factorization.

145220224213412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673548 (or 673546 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 145220224213412 its reverse (214312422022541), we get a palindrome (359532646235953).

The spelling of 145220224213412 in words is "one hundred forty-five trillion, two hundred twenty billion, two hundred twenty-four million, two hundred thirteen thousand, four hundred twelve".