111001210221010 has 16 divisors (see below), whose sum is σ = 199812408751872. Its totient is φ = 44398210676400.

The previous prime is 111001210220983. The next prime is 111001210221089. The reversal of 111001210221010 is 10122012100111.

It is a happy number.

It is a super-3 number, since 3×111001210221010³ (a number of 43 digits) contains 333 as substring.

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, 283971426 + ... + 284362045.

It is an arithmetic number, because the mean of its divisors is an integer number (12488275546992).

Almost surely, 2^{111001210221010} is an apocalyptic number.

111001210221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111001210221010 is a deficient number, since it is larger than the sum of its proper divisors (88811198530862).

111001210221010 is a wasteful number, since it uses less digits than its factorization.

111001210221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568353009.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111001210221010 its reverse (10122012100111), we get a palindrome (121123222321121).

The spelling of 111001210221010 in words is "one hundred eleven trillion, one billion, two hundred ten million, two hundred twenty-one thousand, ten".