212401134 has 24 divisors (see below), whose sum is σ = 502039512. Its totient is φ = 64363920.

The previous prime is 212401117. The next prime is 212401177. The reversal of 212401134 is 431104212.

It is a super-2 number, since 2×212401134² = 90228483448971912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 536169 + ... + 536564.

It is an arithmetic number, because the mean of its divisors is an integer number (20918313).

Almost surely, 2^212401134 is an apocalyptic number.

212401134 is an abundant number, since it is smaller than the sum of its proper divisors (289638378).

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

212401134 is a wasteful number, since it uses less digits than its factorization.

212401134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072752 (or 1072749 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 212401134 is about 14573.9882667717. The cubic root of 212401134 is about 596.6490365808.

Adding to 212401134 its reverse (431104212), we get a palindrome (643505346).

The spelling of 212401134 in words is "two hundred twelve million, four hundred one thousand, one hundred thirty-four".