111011020021210 has 32 divisors (see below), whose sum is σ = 203592319998480. Its totient is φ = 43566097156608.

The previous prime is 111011020021169. The next prime is 111011020021271. The reversal of 111011020021210 is 12120020110111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 52033673352969 + 58977346668241 = 7213437^2 + 7679671^2 .

It is a super-2 number, since 2×111011020021210² (a number of 29 digits) contains 22 as substring.

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, 47715486 + ... + 49987894.

Almost surely, 2^{111011020021210} is an apocalyptic number.

111011020021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111011020021210 is a deficient number, since it is larger than the sum of its proper divisors (92581299977270).

111011020021210 is a wasteful number, since it uses less digits than its factorization.

111011020021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364642.

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

Adding to 111011020021210 its reverse (12120020110111), we get a palindrome (123131040131321).

The spelling of 111011020021210 in words is "one hundred eleven trillion, eleven billion, twenty million, twenty-one thousand, two hundred ten".