1691100221230 has 64 divisors (see below), whose sum is σ = 3492514247040. Its totient is φ = 577527934464.

The previous prime is 1691100221227. The next prime is 1691100221231. The reversal of 1691100221230 is 321220011961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1691100221231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41594472 + ... + 41635108.

It is an arithmetic number, because the mean of its divisors is an integer number (54570535110).

Almost surely, 2^{1691100221230} is an apocalyptic number.

1691100221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1691100221230 is an abundant number, since it is smaller than the sum of its proper divisors (1801414025810).

1691100221230 is a wasteful number, since it uses less digits than its factorization.

1691100221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42973.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 1691100221230 in words is "one trillion, six hundred ninety-one billion, one hundred million, two hundred twenty-one thousand, two hundred thirty".