1042212216 has 32 divisors (see below), whose sum is σ = 2660970240. Its totient is φ = 340012128.

The previous prime is 1042212211. The next prime is 1042212247. The reversal of 1042212216 is 6122122401.

It is a junction number, because it is equal to n+sod(n) for n = 1042212192 and 1042212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042212211) 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, 460846 + ... + 463101.

It is an arithmetic number, because the mean of its divisors is an integer number (83155320).

Almost surely, 2^1042212216 is an apocalyptic number.

It is an amenable number.

1042212216 is an abundant number, since it is smaller than the sum of its proper divisors (1618758024).

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

1042212216 is a wasteful number, since it uses less digits than its factorization.

1042212216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924003 (or 923999 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1042212216 is about 32283.3117260296. The cubic root of 1042212216 is about 1013.8772692433.

Adding to 1042212216 its reverse (6122122401), we get a palindrome (7164334617).

The spelling of 1042212216 in words is "one billion, forty-two million, two hundred twelve thousand, two hundred sixteen".