2141021515215 has 64 divisors (see below), whose sum is σ = 3770965850112. Its totient is φ = 1028655667200.

The previous prime is 2141021515169. The next prime is 2141021515327. The reversal of 2141021515215 is 5125151201412.

It is not a de Polignac number, because 2141021515215 - 2⁶ = 2141021515151 is a prime.

It is a super-2 number, since 2×2141021515215² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 108522682 + ... + 108542408.

It is an arithmetic number, because the mean of its divisors is an integer number (58921341408).

Almost surely, 2^{2141021515215} is an apocalyptic number.

2141021515215 is a deficient number, since it is larger than the sum of its proper divisors (1629944334897).

2141021515215 is a wasteful number, since it uses less digits than its factorization.

2141021515215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25680.

The product of its (nonzero) digits is 4000, while the sum is 30.

Adding to 2141021515215 its reverse (5125151201412), we get a palindrome (7266172716627).

The spelling of 2141021515215 in words is "two trillion, one hundred forty-one billion, twenty-one million, five hundred fifteen thousand, two hundred fifteen".