1021212322 has 16 divisors (see below), whose sum is σ = 1706536440. Its totient is φ = 455075712.

The previous prime is 1021212307. The next prime is 1021212331. The reversal of 1021212322 is 2232121201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 711769041 + 309443281 = 26679^2 + 17591^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1021212296 and 1021212305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676443 + ... + 677950.

Almost surely, 2^1021212322 is an apocalyptic number.

1021212322 is a deficient number, since it is larger than the sum of its proper divisors (685324118).

1021212322 is a wasteful number, since it uses less digits than its factorization.

1021212322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354437.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1021212322 is about 31956.4128462504. The cubic root of 1021212322 is about 1007.0213591328.

Adding to 1021212322 its reverse (2232121201), we get a palindrome (3253333523).

The spelling of 1021212322 in words is "one billion, twenty-one million, two hundred twelve thousand, three hundred twenty-two".