2515020122 has 4 divisors (see below), whose sum is σ = 3772530186. Its totient is φ = 1257510060.

The previous prime is 2515020097. The next prime is 2515020181. The reversal of 2515020122 is 2210205152.

It is a happy number.

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., 2082005641 + 433014481 = 45629^2 + 20809^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2515020094 and 2515020103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628755029 + ... + 628755032.

Almost surely, 2^2515020122 is an apocalyptic number.

2515020122 is a deficient number, since it is larger than the sum of its proper divisors (1257510064).

2515020122 is a wasteful number, since it uses less digits than its factorization.

2515020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257510063.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2515020122 is about 50149.9762911210. The cubic root of 2515020122 is about 1359.9214419012.

Adding to 2515020122 its reverse (2210205152), we get a palindrome (4725225274).

The spelling of 2515020122 in words is "two billion, five hundred fifteen million, twenty thousand, one hundred twenty-two".