2100220210987 has 8 divisors (see below), whose sum is σ = 2106991140800. Its totient is φ = 2093452470144.

The previous prime is 2100220210961. The next prime is 2100220210999. The reversal of 2100220210987 is 7890120220012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100220210987 - 2¹¹ = 2100220208939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100220310987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525589 + ... + 2115817.

It is an arithmetic number, because the mean of its divisors is an integer number (263373892600).

Almost surely, 2^{2100220210987} is an apocalyptic number.

2100220210987 is a deficient number, since it is larger than the sum of its proper divisors (6770929813).

2100220210987 is a wasteful number, since it uses less digits than its factorization.

2100220210987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594485.

The product of its (nonzero) digits is 8064, while the sum is 34.

Adding to 2100220210987 its reverse (7890120220012), we get a palindrome (9990340430999).

The spelling of 2100220210987 in words is "two trillion, one hundred billion, two hundred twenty million, two hundred ten thousand, nine hundred eighty-seven".