1021112210 has 16 divisors (see below), whose sum is σ = 1856952216. Its totient is φ = 404233728.

The previous prime is 1021112189. The next prime is 1021112221. The reversal of 1021112210 is 122111201.

It can be written as a sum of positive squares in 4 ways, for example, as 772450849 + 248661361 = 27793^2 + 15769^2 .

It is a super-2 number, since 2×1021112210² = 2085340290822168200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021112191 and 1021112200.

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 7 ways as a sum of consecutive naturals, for example, 525377 + ... + 527316.

Almost surely, 2^1021112210 is an apocalyptic number.

1021112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021112210 is a deficient number, since it is larger than the sum of its proper divisors (835840006).

1021112210 is a wasteful number, since it uses less digits than its factorization.

1021112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052797.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1021112210 is about 31954.8464242906. The cubic root of 1021112210 is about 1006.9884511160.

Adding to 1021112210 its reverse (122111201), we get a palindrome (1143223411).

The spelling of 1021112210 in words is "one billion, twenty-one million, one hundred twelve thousand, two hundred ten".