1002154340122 has 12 divisors (see below), whose sum is σ = 1627759564830. Its totient is φ = 462532772208.

The previous prime is 1002154340107. The next prime is 1002154340147. The reversal of 1002154340122 is 2210434512001.

It can be written as a sum of positive squares in 3 ways, for example, as 432583759521 + 569570580601 = 657711^2 + 754699^2 .

It is a super-2 number, since 2×1002154340122² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1482476497 + ... + 1482477172.

Almost surely, 2^{1002154340122} is an apocalyptic number.

1002154340122 is a deficient number, since it is larger than the sum of its proper divisors (625605224708).

1002154340122 is a wasteful number, since it uses less digits than its factorization.

1002154340122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964953697 (or 2964953684 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1002154340122 its reverse (2210434512001), we get a palindrome (3212588852123).

The spelling of 1002154340122 in words is "one trillion, two billion, one hundred fifty-four million, three hundred forty thousand, one hundred twenty-two".