1012213422 has 80 divisors (see below), whose sum is σ = 2619924912. Its totient is φ = 288679680.

The previous prime is 1012213409. The next prime is 1012213427. The reversal of 1012213422 is 2243122101.

It is a happy number.

1012213422 is a `hidden beast` number, since 101 + 221 + 342 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1012213395 and 1012213404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012213427) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13588 + ... + 47000.

Almost surely, 2^1012213422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012213422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1309962456).

1012213422 is an abundant number, since it is smaller than the sum of its proper divisors (1607711490).

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

1012213422 is a wasteful number, since it uses less digits than its factorization.

1012213422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33455 (or 33446 counting only the distinct ones).

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

The square root of 1012213422 is about 31815.3016958821. The cubic root of 1012213422 is about 1004.0546780325.

Adding to 1012213422 its reverse (2243122101), we get a palindrome (3255335523).

The spelling of 1012213422 in words is "one billion, twelve million, two hundred thirteen thousand, four hundred twenty-two".