60120123131221 has 4 divisors (see below), whose sum is σ = 60122585783052. Its totient is φ = 60117660479392.

The previous prime is 60120123131183. The next prime is 60120123131273. The reversal of 60120123131221 is 12213132102106.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18627381243025 + 41492741888196 = 4315945^2 + 6441486^2 .

It is a cyclic number.

It is not a de Polignac number, because 60120123131221 - 2¹³ = 60120123123029 is a prime.

It is a super-2 number, since 2×60120123131221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60120123131921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231289296 + ... + 1231338121.

It is an arithmetic number, because the mean of its divisors is an integer number (15030646445763).

Almost surely, 2^{60120123131221} is an apocalyptic number.

It is an amenable number.

60120123131221 is a deficient number, since it is larger than the sum of its proper divisors (2462651831).

60120123131221 is a wasteful number, since it uses less digits than its factorization.

60120123131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462651830.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 60120123131221 its reverse (12213132102106), we get a palindrome (72333255233327).

The spelling of 60120123131221 in words is "sixty trillion, one hundred twenty billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-one".