100211011210987 has 4 divisors (see below), whose sum is σ = 100212114546360. Its totient is φ = 100209907875616.

The previous prime is 100211011210931. The next prime is 100211011211033. The reversal of 100211011210987 is 789012110112001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100211011210987 - 2⁷ = 100211011210859 is a prime.

It is a super-3 number, since 3×100211011210987³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100211011214987) 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, 551531437 + ... + 551713102.

It is an arithmetic number, because the mean of its divisors is an integer number (25053028636590).

Almost surely, 2^{100211011210987} is an apocalyptic number.

100211011210987 is a deficient number, since it is larger than the sum of its proper divisors (1103335373).

100211011210987 is an equidigital number, since it uses as much as digits as its factorization.

100211011210987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103335372.

The product of its (nonzero) digits is 2016, while the sum is 34.

Adding to 100211011210987 its reverse (789012110112001), we get a palindrome (889223121322988).

The spelling of 100211011210987 in words is "one hundred trillion, two hundred eleven billion, eleven million, two hundred ten thousand, nine hundred eighty-seven".