111201210021002 has 32 divisors (see below), whose sum is σ = 169605471497040. Its totient is φ = 54666801953280.

The previous prime is 111201210020951. The next prime is 111201210021091. The reversal of 111201210021002 is 200120012102111.

It can be written as a sum of positive squares in 8 ways, for example, as 1879150214041 + 109322059806961 = 1370821^2 + 10455719^2 .

It is a super-2 number, since 2×111201210021002² (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, 3644850524 + ... + 3644881032.

Almost surely, 2^{111201210021002} is an apocalyptic number.

111201210021002 is a deficient number, since it is larger than the sum of its proper divisors (58404261476038).

111201210021002 is a wasteful number, since it uses less digits than its factorization.

111201210021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41786.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111201210021002 its reverse (200120012102111), we get a palindrome (311321222123113).

The spelling of 111201210021002 in words is "one hundred eleven trillion, two hundred one billion, two hundred ten million, twenty-one thousand, two".