2215231212005 has 64 divisors (see below), whose sum is σ = 3201251328000. Its totient is φ = 1469455606080.

The previous prime is 2215231211957. The next prime is 2215231212091. The reversal of 2215231212005 is 5002121325122.

It is a happy number.

It is not a de Polignac number, because 2215231212005 - 2⁸ = 2215231211749 is a prime.

It is a super-2 number, since 2×2215231212005² (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, 176661026 + ... + 176673564.

It is an arithmetic number, because the mean of its divisors is an integer number (50019552000).

Almost surely, 2^{2215231212005} is an apocalyptic number.

It is an amenable number.

2215231212005 is a deficient number, since it is larger than the sum of its proper divisors (986020115995).

2215231212005 is a wasteful number, since it uses less digits than its factorization.

2215231212005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15919 (or 15905 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 2215231212005 its reverse (5002121325122), we get a palindrome (7217352537127).

The spelling of 2215231212005 in words is "two trillion, two hundred fifteen billion, two hundred thirty-one million, two hundred twelve thousand, five".