1201021210010 has 16 divisors (see below), whose sum is σ = 2162225635272. Its totient is φ = 480322382400.

The previous prime is 1201021209953. The next prime is 1201021210043. The reversal of 1201021210010 is 100121201021.

It can be written as a sum of positive squares in 4 ways, for example, as 752728024801 + 448293185209 = 867599^2 + 669547^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201021209973 and 1201021210000.

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, 10704101 + ... + 10815720.

Almost surely, 2^{1201021210010} is an apocalyptic number.

1201021210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201021210010 is a deficient number, since it is larger than the sum of its proper divisors (961204425262).

1201021210010 is a wasteful number, since it uses less digits than its factorization.

1201021210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21525409.

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

Adding to 1201021210010 its reverse (100121201021), we get a palindrome (1301142411031).

The spelling of 1201021210010 in words is "one trillion, two hundred one billion, twenty-one million, two hundred ten thousand, ten".