146214745221 has 16 divisors (see below), whose sum is σ = 196490786688. Its totient is φ = 96709224000.

The previous prime is 146214745219. The next prime is 146214745283. The reversal of 146214745221 is 122547412641.

It is not a de Polignac number, because 146214745221 - 2¹ = 146214745219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146214745221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146214745211) 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, 158551 + ... + 563531.

It is an arithmetic number, because the mean of its divisors is an integer number (12280674168).

Almost surely, 2^146214745221 is an apocalyptic number.

It is an amenable number.

146214745221 is a deficient number, since it is larger than the sum of its proper divisors (50276041467).

146214745221 is a wasteful number, since it uses less digits than its factorization.

146214745221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405932.

The product of its digits is 107520, while the sum is 39.

The spelling of 146214745221 in words is "one hundred forty-six billion, two hundred fourteen million, seven hundred forty-five thousand, two hundred twenty-one".