1121200021010 has 16 divisors (see below), whose sum is σ = 2087751763800. Its totient is φ = 433015180416.

The previous prime is 1121200020973. The next prime is 1121200021031. The reversal of 1121200021010 is 101200021211.

It can be written as a sum of positive squares in 4 ways, for example, as 1084720167001 + 36479854009 = 1041499^2 + 190997^2 .

It is a super-2 number, since 2×1121200021010² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1121200020982 and 1121200021000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1933103195 + ... + 1933103774.

Almost surely, 2^{1121200021010} is an apocalyptic number.

1121200021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121200021010 is a deficient number, since it is larger than the sum of its proper divisors (966551742790).

1121200021010 is a wasteful number, since it uses less digits than its factorization.

1121200021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866207005.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1121200021010 its reverse (101200021211), we get a palindrome (1222400042221).

The spelling of 1121200021010 in words is "one trillion, one hundred twenty-one billion, two hundred million, twenty-one thousand, ten".