1021222010 has 8 divisors (see below), whose sum is σ = 1838199636. Its totient is φ = 408488800.

The previous prime is 1021222001. The next prime is 1021222021. The reversal of 1021222010 is 102221201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1020355249 + 866761 = 31943^2 + 931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1021221982 and 1021222000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51061091 + ... + 51061110.

Almost surely, 2^1021222010 is an apocalyptic number.

1021222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021222010 is a deficient number, since it is larger than the sum of its proper divisors (816977626).

1021222010 is a wasteful number, since it uses less digits than its factorization.

1021222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102122208.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1021222010 is about 31956.5644273598. The cubic root of 1021222010 is about 1007.0245435806.

Adding to 1021222010 its reverse (102221201), we get a palindrome (1123443211).

The spelling of 1021222010 in words is "one billion, twenty-one million, two hundred twenty-two thousand, ten".