2213121301715 has 8 divisors (see below), whose sum is σ = 2665618223760. Its totient is φ = 1763915266912.

The previous prime is 2213121301691. The next prime is 2213121301717. The reversal of 2213121301715 is 5171031213122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2213121301715 is a prime.

It is a super-2 number, since 2×2213121301715² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2213121301717) 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, 822720329 + ... + 822723018.

It is an arithmetic number, because the mean of its divisors is an integer number (333202277970).

Almost surely, 2^{2213121301715} is an apocalyptic number.

2213121301715 is a deficient number, since it is larger than the sum of its proper divisors (452496922045).

2213121301715 is a wasteful number, since it uses less digits than its factorization.

2213121301715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645443621.

The product of its (nonzero) digits is 2520, while the sum is 29.

Adding to 2213121301715 its reverse (5171031213122), we get a palindrome (7384152514837).

The spelling of 2213121301715 in words is "two trillion, two hundred thirteen billion, one hundred twenty-one million, three hundred one thousand, seven hundred fifteen".