1002154345522 has 8 divisors (see below), whose sum is σ = 1639888929072. Its totient is φ = 455524702500.

The previous prime is 1002154345499. The next prime is 1002154345529. The reversal of 1002154345522 is 2255434512001.

It is a happy number.

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

It is a super-2 number, since 2×1002154345522² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002154345529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22776235104 + ... + 22776235147.

It is an arithmetic number, because the mean of its divisors is an integer number (204986116134).

Almost surely, 2^{1002154345522} is an apocalyptic number.

1002154345522 is a deficient number, since it is larger than the sum of its proper divisors (637734583550).

1002154345522 is a wasteful number, since it uses less digits than its factorization.

1002154345522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45552470264.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 1002154345522 its reverse (2255434512001), we get a palindrome (3257588857523).

The spelling of 1002154345522 in words is "one trillion, two billion, one hundred fifty-four million, three hundred forty-five thousand, five hundred twenty-two".