1002020122010 has 16 divisors (see below), whose sum is σ = 1806398308296. Its totient is φ = 400194251328.

The previous prime is 1002020121953. The next prime is 1002020122013. The reversal of 1002020122010 is 102210202001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 951173028961 + 50847093049 = 975281^2 + 225493^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1002020121982 and 1002020122000.

It is not an unprimeable number, because it can be changed into a prime (1002020122013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76717829 + ... + 76730888.

Almost surely, 2^{1002020122010} is an apocalyptic number.

1002020122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002020122010 is a deficient number, since it is larger than the sum of its proper divisors (804378186286).

1002020122010 is a wasteful number, since it uses less digits than its factorization.

1002020122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153449377.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1002020122010 its reverse (102210202001), we get a palindrome (1104230324011).

The spelling of 1002020122010 in words is "one trillion, two billion, twenty million, one hundred twenty-two thousand, ten".