212233003011220 has 24 divisors (see below), whose sum is σ = 461057903094600. Its totient is φ = 81965849438592.

The previous prime is 212233003011163. The next prime is 212233003011223. The reversal of 212233003011220 is 22110300332212.

It can be written as a sum of positive squares in 4 ways, for example, as 55557613875204 + 156675389136016 = 7453698^2 + 12517004^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212233003011191 and 212233003011200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212233003011223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182959484775 + ... + 182959485934.

It is an arithmetic number, because the mean of its divisors is an integer number (19210745962275).

Almost surely, 2^{212233003011220} is an apocalyptic number.

212233003011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212233003011220 is an abundant number, since it is smaller than the sum of its proper divisors (248824900083380).

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

212233003011220 is a wasteful number, since it uses less digits than its factorization.

212233003011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365918970747 (or 365918970745 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212233003011220 its reverse (22110300332212), we get a palindrome (234343303343432).

The spelling of 212233003011220 in words is "two hundred twelve trillion, two hundred thirty-three billion, three million, eleven thousand, two hundred twenty".