111021121010 has 16 divisors (see below), whose sum is σ = 199843995096. Its totient is φ = 44407120128.

The previous prime is 111021120989. The next prime is 111021121037. The reversal of 111021121010 is 10121120111.

111021121010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 91471768249 + 19549352761 = 302443^2 + 139819^2 .

It is a super-3 number, since 3×111021121010³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111021120982 and 111021121000.

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, 229994 + ... + 524346.

Almost surely, 2^111021121010 is an apocalyptic number.

111021121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111021121010 is a deficient number, since it is larger than the sum of its proper divisors (88822874086).

111021121010 is a wasteful number, since it uses less digits than its factorization.

111021121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332077.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111021121010 its reverse (10121120111), we get a palindrome (121142241121).

The spelling of 111021121010 in words is "one hundred eleven billion, twenty-one million, one hundred twenty-one thousand, ten".