2115041241621 has 32 divisors (see below), whose sum is σ = 3516026259456. Its totient is φ = 1098687240000.

The previous prime is 2115041241571. The next prime is 2115041241623. The reversal of 2115041241621 is 1261421405112.

It is not a de Polignac number, because 2115041241621 - 2¹⁰ = 2115041240597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115041241623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7987296 + ... + 8247846.

It is an arithmetic number, because the mean of its divisors is an integer number (109875820608).

Almost surely, 2^{2115041241621} is an apocalyptic number.

2115041241621 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2115041241621 is a deficient number, since it is larger than the sum of its proper divisors (1400985017835).

2115041241621 is a wasteful number, since it uses less digits than its factorization.

2115041241621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295713.

The product of its (nonzero) digits is 3840, while the sum is 30.

Adding to 2115041241621 its reverse (1261421405112), we get a palindrome (3376462646733).

The spelling of 2115041241621 in words is "two trillion, one hundred fifteen billion, forty-one million, two hundred forty-one thousand, six hundred twenty-one".