100211022020987 has 4 divisors (see below), whose sum is σ = 102541510905240. Its totient is φ = 97880533136736.

The previous prime is 100211022020981. The next prime is 100211022021031. The reversal of 100211022020987 is 789020220112001.

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 100211022020987 - 2¹⁴ = 100211022004603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100211022020981) 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, 1165244442062 + ... + 1165244442147.

It is an arithmetic number, because the mean of its divisors is an integer number (25635377726310).

Almost surely, 2^{100211022020987} is an apocalyptic number.

100211022020987 is a deficient number, since it is larger than the sum of its proper divisors (2330488884253).

100211022020987 is an equidigital number, since it uses as much as digits as its factorization.

100211022020987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330488884252.

The product of its (nonzero) digits is 8064, while the sum is 35.

Adding to 100211022020987 its reverse (789020220112001), we get a palindrome (889231242132988).

The spelling of 100211022020987 in words is "one hundred trillion, two hundred eleven billion, twenty-two million, twenty thousand, nine hundred eighty-seven".