1002120100988 has 6 divisors (see below), whose sum is σ = 1753710176736. Its totient is φ = 501060050492.

The previous prime is 1002120100987. The next prime is 1002120101023. The reversal of 1002120100988 is 8890010212001.

1002120100988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1002120100988² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002120100981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125265012620 + ... + 125265012627.

It is an arithmetic number, because the mean of its divisors is an integer number (292285029456).

Almost surely, 2^{1002120100988} is an apocalyptic number.

It is an amenable number.

1002120100988 is a deficient number, since it is larger than the sum of its proper divisors (751590075748).

1002120100988 is a wasteful number, since it uses less digits than its factorization.

1002120100988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250530025251 (or 250530025249 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 32.

Adding to 1002120100988 its reverse (8890010212001), we get a palindrome (9892130312989).

The spelling of 1002120100988 in words is "one trillion, two billion, one hundred twenty million, one hundred thousand, nine hundred eighty-eight".