211220023300 has 72 divisors (see below), whose sum is σ = 538478160192. Its totient is φ = 70899024000.

The previous prime is 211220023283. The next prime is 211220023331. The reversal of 211220023300 is 3320022112.

It is a super-2 number, since 2×211220023300² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7371016 + ... + 7399615.

It is an arithmetic number, because the mean of its divisors is an integer number (7478863336).

Almost surely, 2^211220023300 is an apocalyptic number.

211220023300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211220023300 is an abundant number, since it is smaller than the sum of its proper divisors (327258136892).

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

211220023300 is a wasteful number, since it uses less digits than its factorization.

211220023300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14770669 (or 14770662 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 211220023300 its reverse (3320022112), we get a palindrome (214540045412).

The spelling of 211220023300 in words is "two hundred eleven billion, two hundred twenty million, twenty-three thousand, three hundred".