2120562012015 has 48 divisors (see below), whose sum is σ = 3685078425600. Its totient is φ = 1128064038336.

The previous prime is 2120562012013. The next prime is 2120562012043. The reversal of 2120562012015 is 5102102650212.

2120562012015 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 5 + 620 + 1 + 20 + 15 = 666.

It is not a de Polignac number, because 2120562012015 - 2¹ = 2120562012013 is a prime.

It is a super-2 number, since 2×2120562012015² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2120562012015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120562012013) 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, 78354556 + ... + 78381614.

It is an arithmetic number, because the mean of its divisors is an integer number (76772467200).

Almost surely, 2^{2120562012015} is an apocalyptic number.

2120562012015 is a deficient number, since it is larger than the sum of its proper divisors (1564516413585).

2120562012015 is a wasteful number, since it uses less digits than its factorization.

2120562012015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31476 (or 31473 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 2120562012015 its reverse (5102102650212), we get a palindrome (7222664662227).

The spelling of 2120562012015 in words is "two trillion, one hundred twenty billion, five hundred sixty-two million, twelve thousand, fifteen".