130213220121 has 48 divisors (see below), whose sum is σ = 192501738000. Its totient is φ = 84800618496.

The previous prime is 130213220117. The next prime is 130213220153. The reversal of 130213220121 is 121022312031.

It can be written as a sum of positive squares in 8 ways, for example, as 16883364096 + 113329856025 = 129936^2 + 336645^2 .

It is not a de Polignac number, because 130213220121 - 2² = 130213220117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130213220094 and 130213220103.

It is not an unprimeable number, because it can be changed into a prime (130213220101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23031531 + ... + 23037183.

It is an arithmetic number, because the mean of its divisors is an integer number (4010452875).

Almost surely, 2^130213220121 is an apocalyptic number.

It is an amenable number.

130213220121 is a deficient number, since it is larger than the sum of its proper divisors (62288517879).

130213220121 is a wasteful number, since it uses less digits than its factorization.

130213220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090 (or 6087 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 130213220121 its reverse (121022312031), we get a palindrome (251235532152).

The spelling of 130213220121 in words is "one hundred thirty billion, two hundred thirteen million, two hundred twenty thousand, one hundred twenty-one".