212401136 has 20 divisors (see below), whose sum is σ = 429420432. Its totient is φ = 101582976.

The previous prime is 212401117. The next prime is 212401177. The reversal of 212401136 is 631104212.

It is a super-2 number, since 2×212401136² = 90228485148180992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288221 + ... + 288956.

Almost surely, 2^212401136 is an apocalyptic number.

It is an amenable number.

212401136 is an abundant number, since it is smaller than the sum of its proper divisors (217019296).

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

212401136 is a wasteful number, since it uses less digits than its factorization.

212401136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577208 (or 577202 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 212401136 is about 14573.9883353871. The cubic root of 212401136 is about 596.6490384536.

Adding to 212401136 its reverse (631104212), we get a palindrome (843505348).

The spelling of 212401136 in words is "two hundred twelve million, four hundred one thousand, one hundred thirty-six".