2121465130 has 16 divisors (see below), whose sum is σ = 3950314920. Its totient is φ = 819324352.

The previous prime is 2121465113. The next prime is 2121465133. The reversal of 2121465130 is 315641212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 943534089 + 1177931041 = 30717^2 + 34321^2 .

It is a super-2 number, since 2×2121465130² = 9001228595611833800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121465095 and 2121465104.

It is not an unprimeable number, because it can be changed into a prime (2121465133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3657409 + ... + 3657988.

Almost surely, 2^2121465130 is an apocalyptic number.

2121465130 is a deficient number, since it is larger than the sum of its proper divisors (1828849790).

2121465130 is a wasteful number, since it uses less digits than its factorization.

2121465130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7315433.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2121465130 is about 46059.3652800383. The cubic root of 2121465130 is about 1284.9275254739.

The spelling of 2121465130 in words is "two billion, one hundred twenty-one million, four hundred sixty-five thousand, one hundred thirty".