211121020001200 has 60 divisors (see below), whose sum is σ = 507219771513168. Its totient is φ = 84448154771200.

The previous prime is 211121020001081. The next prime is 211121020001209. The reversal of 211121020001200 is 2100020121112.

It is not an unprimeable number, because it can be changed into a prime (211121020001209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190496670 + ... + 191601730.

Almost surely, 2^{211121020001200} is an apocalyptic number.

211121020001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211121020001200 is an abundant number, since it is smaller than the sum of its proper divisors (296098751511968).

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

211121020001200 is a wasteful number, since it uses less digits than its factorization.

211121020001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582702 (or 1582691 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211121020001200 its reverse (2100020121112), we get a palindrome (213221040122312).

The spelling of 211121020001200 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty million, one thousand, two hundred".