1210212342 has 24 divisors (see below), whose sum is σ = 2622958416. Its totient is φ = 403276176.

The previous prime is 1210212329. The next prime is 1210212343. The reversal of 1210212342 is 2432120121.

It is a happy number.

1210212342 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1210212342² = 2929227825458249928, 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 not an unprimeable number, because it can be changed into a prime (1210212343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60508 + ... + 77984.

It is an arithmetic number, because the mean of its divisors is an integer number (109289934).

Almost surely, 2^1210212342 is an apocalyptic number.

1210212342 is an abundant number, since it is smaller than the sum of its proper divisors (1412746074).

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

1210212342 is a wasteful number, since it uses less digits than its factorization.

1210212342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21332 (or 21329 counting only the distinct ones).

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

The square root of 1210212342 is about 34788.1063296064. The cubic root of 1210212342 is about 1065.6645670353.

Adding to 1210212342 its reverse (2432120121), we get a palindrome (3642332463).

The spelling of 1210212342 in words is "one billion, two hundred ten million, two hundred twelve thousand, three hundred forty-two".