111020110001210 has 16 divisors (see below), whose sum is σ = 199970046788616. Its totient is φ = 44378299825728.

The previous prime is 111020110001209. The next prime is 111020110001221. The reversal of 111020110001210 is 12100011020111.

It can be written as a sum of positive squares in 4 ways, for example, as 108802485690649 + 2217624310561 = 10430843^2 + 1489169^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111020110001191 and 111020110001200.

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, 3718006169 + ... + 3718036028.

Almost surely, 2^{111020110001210} is an apocalyptic number.

111020110001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111020110001210 is a deficient number, since it is larger than the sum of its proper divisors (88949936787406).

111020110001210 is a wasteful number, since it uses less digits than its factorization.

111020110001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7436043697.

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

Adding to 111020110001210 its reverse (12100011020111), we get a palindrome (123120121021321).

The spelling of 111020110001210 in words is "one hundred eleven trillion, twenty billion, one hundred ten million, one thousand, two hundred ten".