141221016 has 32 divisors (see below), whose sum is σ = 392281200. Its totient is φ = 47073600.

The previous prime is 141221011. The next prime is 141221021. The reversal of 141221016 is 610122141.

It is an interprime number because it is at equal distance from previous prime (141221011) and next prime (141221021).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 141221016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141221011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326685 + ... + 327116.

Almost surely, 2^141221016 is an apocalyptic number.

It is an amenable number.

141221016 is an abundant number, since it is smaller than the sum of its proper divisors (251060184).

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

141221016 is a wasteful number, since it uses less digits than its factorization.

141221016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653816 (or 653806 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 141221016 is about 11883.6448954014. The cubic root of 141221016 is about 520.7545947801.

Adding to 141221016 its reverse (610122141), we get a palindrome (751343157).

The spelling of 141221016 in words is "one hundred forty-one million, two hundred twenty-one thousand, sixteen".