112121101021210 has 16 divisors (see below), whose sum is σ = 201822014824776. Its totient is φ = 44847544189248.

The previous prime is 112121101021099. The next prime is 112121101021231. The reversal of 112121101021210 is 12120101121211.

It can be written as a sum of positive squares in 4 ways, for example, as 110308660800849 + 1812440220361 = 10502793^2 + 1346269^2 .

It is a super-2 number, since 2×112121101021210² (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 7 ways as a sum of consecutive naturals, for example, 111501849 + ... + 112502908.

Almost surely, 2^{112121101021210} is an apocalyptic number.

112121101021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

112121101021210 is a deficient number, since it is larger than the sum of its proper divisors (89700913803566).

112121101021210 is a wasteful number, since it uses less digits than its factorization.

112121101021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224054817.

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

Adding to 112121101021210 its reverse (12120101121211), we get a palindrome (124241202142421).

The spelling of 112121101021210 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred one million, twenty-one thousand, two hundred ten".