1002154222315 has 16 divisors (see below), whose sum is σ = 1238448499200. Its totient is φ = 778158437472.

The previous prime is 1002154222291. The next prime is 1002154222327. The reversal of 1002154222315 is 5132224512001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1002154222315 - 2²⁹ = 1001617351403 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21477537 + ... + 21524146.

It is an arithmetic number, because the mean of its divisors is an integer number (77403031200).

Almost surely, 2^{1002154222315} is an apocalyptic number.

1002154222315 is a deficient number, since it is larger than the sum of its proper divisors (236294276885).

1002154222315 is an equidigital number, since it uses as much as digits as its factorization.

1002154222315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43001826.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 1002154222315 its reverse (5132224512001), we get a palindrome (6134378734316).

The spelling of 1002154222315 in words is "one trillion, two billion, one hundred fifty-four million, two hundred twenty-two thousand, three hundred fifteen".