1201220011010 has 16 divisors (see below), whose sum is σ = 2236754503800. Its totient is φ = 463919452416.

The previous prime is 1201220010989. The next prime is 1201220011021. The reversal of 1201220011010 is 101100221021.

It can be written as a sum of positive squares in 4 ways, for example, as 1147171665721 + 54048345289 = 1071061^2 + 232483^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201220010982 and 1201220011000.

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, 2071068695 + ... + 2071069274.

Almost surely, 2^{1201220011010} is an apocalyptic number.

1201220011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201220011010 is a deficient number, since it is larger than the sum of its proper divisors (1035534492790).

1201220011010 is a wasteful number, since it uses less digits than its factorization.

1201220011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142138005.

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

Adding to 1201220011010 its reverse (101100221021), we get a palindrome (1302320232031).

The spelling of 1201220011010 in words is "one trillion, two hundred one billion, two hundred twenty million, eleven thousand, ten".