212132272 has 40 divisors (see below), whose sum is σ = 450060480. Its totient is φ = 96060480.

The previous prime is 212132267. The next prime is 212132281. The reversal of 212132272 is 272231212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47679 + ... + 51937.

It is an arithmetic number, because the mean of its divisors is an integer number (11251512).

Almost surely, 2^212132272 is an apocalyptic number.

212132272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212132272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225030240).

212132272 is an abundant number, since it is smaller than the sum of its proper divisors (237928208).

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

212132272 is a wasteful number, since it uses less digits than its factorization.

212132272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561 (or 4555 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 212132272 is about 14564.7613094070. The cubic root of 212132272 is about 596.3971798165.

Adding to 212132272 its reverse (272231212), we get a palindrome (484363484).

The spelling of 212132272 in words is "two hundred twelve million, one hundred thirty-two thousand, two hundred seventy-two".