20120211223300 has 36 divisors (see below), whose sum is σ = 43703621415076. Its totient is φ = 8040201897600.

The previous prime is 20120211223253. The next prime is 20120211223361. The reversal of 20120211223300 is 332211202102.

It can be written as a sum of positive squares in 6 ways, for example, as 72598991364 + 20047612231936 = 269442^2 + 4477456^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98429787 + ... + 98633986.

Almost surely, 2^{20120211223300} is an apocalyptic number.

20120211223300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120211223300 is an abundant number, since it is smaller than the sum of its proper divisors (23583410191776).

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

20120211223300 is a wasteful number, since it uses less digits than its factorization.

20120211223300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197064808 (or 197064801 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20120211223300 its reverse (332211202102), we get a palindrome (20452422425402).

The spelling of 20120211223300 in words is "twenty trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty-three thousand, three hundred".