2130121331122 has 4 divisors (see below), whose sum is σ = 3195181996686. Its totient is φ = 1065060665560.

The previous prime is 2130121331099. The next prime is 2130121331123. The reversal of 2130121331122 is 2211331210312.

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

It can be written as a sum of positive squares in only one way, i.e., 1885214126961 + 244907204161 = 1373031^2 + 494881^2 .

It is a super-2 number, since 2×2130121331122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2130121331093 and 2130121331102.

It is not an unprimeable number, because it can be changed into a prime (2130121331123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532530332779 + ... + 532530332782.

Almost surely, 2^{2130121331122} is an apocalyptic number.

2130121331122 is a deficient number, since it is larger than the sum of its proper divisors (1065060665564).

2130121331122 is a wasteful number, since it uses less digits than its factorization.

2130121331122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065060665563.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2130121331122 its reverse (2211331210312), we get a palindrome (4341452541434).

The spelling of 2130121331122 in words is "two trillion, one hundred thirty billion, one hundred twenty-one million, three hundred thirty-one thousand, one hundred twenty-two".