2100216774 has 32 divisors (see below), whose sum is σ = 4233012480. Its totient is φ = 694663200.

The previous prime is 2100216739. The next prime is 2100216787. The reversal of 2100216774 is 4776120012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452184 + ... + 456804.

It is an arithmetic number, because the mean of its divisors is an integer number (132281640).

Almost surely, 2^2100216774 is an apocalyptic number.

2100216774 is an abundant number, since it is smaller than the sum of its proper divisors (2132795706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2100216774 is a wasteful number, since it uses less digits than its factorization.

2100216774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 2100216774 is about 45828.1220867711. The cubic root of 2100216774 is about 1280.6232263711.

Adding to 2100216774 its reverse (4776120012), we get a palindrome (6876336786).

The spelling of 2100216774 in words is "two billion, one hundred million, two hundred sixteen thousand, seven hundred seventy-four".