212401122 has 32 divisors (see below), whose sum is σ = 432897792. Its totient is φ = 69459984.

The previous prime is 212401117. The next prime is 212401177. The reversal of 212401122 is 221104212.

It is a super-2 number, since 2×212401122² = 90228473253717768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112833 + ... + 114699.

It is an arithmetic number, because the mean of its divisors is an integer number (13528056).

Almost surely, 2^212401122 is an apocalyptic number.

212401122 is an abundant number, since it is smaller than the sum of its proper divisors (220496670).

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

212401122 is a wasteful number, since it uses less digits than its factorization.

212401122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 212401122 is about 14573.9878550793. The cubic root of 212401122 is about 596.6490253446.

Adding to 212401122 its reverse (221104212), we get a palindrome (433505334).

The spelling of 212401122 in words is "two hundred twelve million, four hundred one thousand, one hundred twenty-two".