10021221110 has 32 divisors (see below), whose sum is σ = 19200952800. Its totient is φ = 3754840320.

The previous prime is 10021221109. The next prime is 10021221143. The reversal of 10021221110 is 1112212001.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10021221091 and 10021221100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279401 + ... + 313220.

It is an arithmetic number, because the mean of its divisors is an integer number (600029775).

Almost surely, 2^10021221110 is an apocalyptic number.

10021221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10021221110 is a deficient number, since it is larger than the sum of its proper divisors (9179731690).

10021221110 is a wasteful number, since it uses less digits than its factorization.

10021221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592736.

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

Adding to 10021221110 its reverse (1112212001), we get a palindrome (11133433111).

The spelling of 10021221110 in words is "ten billion, twenty-one million, two hundred twenty-one thousand, one hundred ten".