212320301100 has 72 divisors (see below), whose sum is σ = 616862632848. Its totient is φ = 56383795200.

The previous prime is 212320301093. The next prime is 212320301107. The reversal of 212320301100 is 1103023212.

It is an interprime number because it is at equal distance from previous prime (212320301093) and next prime (212320301107).

It is a super-2 number, since 2×212320301100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212320301100.

It is not an unprimeable number, because it can be changed into a prime (212320301107) 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, 1396029 + ... + 1540628.

Almost surely, 2^212320301100 is an apocalyptic number.

212320301100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212320301100 is an abundant number, since it is smaller than the sum of its proper divisors (404542331748).

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

212320301100 is a wasteful number, since it uses less digits than its factorization.

212320301100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936915 (or 2936908 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 212320301100 its reverse (1103023212), we get a palindrome (213423324312).

The spelling of 212320301100 in words is "two hundred twelve billion, three hundred twenty million, three hundred one thousand, one hundred".