211100121300 has 72 divisors (see below), whose sum is σ = 642929509600. Its totient is φ = 53330555520.

The previous prime is 211100121299. The next prime is 211100121301. The reversal of 211100121300 is 3121001112.

It is an interprime number because it is at equal distance from previous prime (211100121299) and next prime (211100121301).

It is a super-2 number, since 2×211100121300² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211100121301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18511855 + ... + 18523254.

Almost surely, 2^211100121300 is an apocalyptic number.

211100121300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211100121300 is an abundant number, since it is smaller than the sum of its proper divisors (431829388300).

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

211100121300 is a wasteful number, since it uses less digits than its factorization.

211100121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37035145 (or 37035138 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 211100121300 its reverse (3121001112), we get a palindrome (214221122412).

The spelling of 211100121300 in words is "two hundred eleven billion, one hundred million, one hundred twenty-one thousand, three hundred".