212401105 has 8 divisors (see below), whose sum is σ = 291292992. Its totient is φ = 145646448.

The previous prime is 212401103. The next prime is 212401109. The reversal of 212401105 is 501104212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212401105 - 2¹ = 212401103 is a prime.

It is a super-2 number, since 2×212401105² = 90228458810442050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212401103) 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, 3034267 + ... + 3034336.

It is an arithmetic number, because the mean of its divisors is an integer number (36411624).

Almost surely, 2^212401105 is an apocalyptic number.

It is an amenable number.

212401105 is a deficient number, since it is larger than the sum of its proper divisors (78891887).

212401105 is an equidigital number, since it uses as much as digits as its factorization.

212401105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6068615.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 212401105 is about 14573.9872718484. The cubic root of 212401105 is about 596.6490094265.

Adding to 212401105 its reverse (501104212), we get a palindrome (713505317).

The spelling of 212401105 in words is "two hundred twelve million, four hundred one thousand, one hundred five".