120221214545 has 32 divisors (see below), whose sum is σ = 153716935680. Its totient is φ = 90110592000.

The previous prime is 120221214541. The next prime is 120221214583. The reversal of 120221214545 is 545412122021.

It is not a de Polignac number, because 120221214545 - 2² = 120221214541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120221214541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760301 + ... + 904709.

It is an arithmetic number, because the mean of its divisors is an integer number (4803654240).

Almost surely, 2^120221214545 is an apocalyptic number.

It is an amenable number.

120221214545 is a deficient number, since it is larger than the sum of its proper divisors (33495721135).

120221214545 is a wasteful number, since it uses less digits than its factorization.

120221214545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144617.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 120221214545 its reverse (545412122021), we get a palindrome (665633336566).

The spelling of 120221214545 in words is "one hundred twenty billion, two hundred twenty-one million, two hundred fourteen thousand, five hundred forty-five".