2021100100988 has 6 divisors (see below), whose sum is σ = 3536925176736. Its totient is φ = 1010550050492.

The previous prime is 2021100100979. The next prime is 2021100100997. The reversal of 2021100100988 is 8890010011202.

It is an interprime number because it is at equal distance from previous prime (2021100100979) and next prime (2021100100997).

It is a super-2 number, since 2×2021100100988² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252637512620 + ... + 252637512627.

It is an arithmetic number, because the mean of its divisors is an integer number (589487529456).

Almost surely, 2^{2021100100988} is an apocalyptic number.

It is an amenable number.

2021100100988 is a deficient number, since it is larger than the sum of its proper divisors (1515825075748).

2021100100988 is a wasteful number, since it uses less digits than its factorization.

2021100100988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505275025251 (or 505275025249 counting only the distinct ones).

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

The spelling of 2021100100988 in words is "two trillion, twenty-one billion, one hundred million, one hundred thousand, nine hundred eighty-eight".