20101220122010 has 16 divisors (see below), whose sum is σ = 38086522336800. Its totient is φ = 7617304467216.

The previous prime is 20101220122007. The next prime is 20101220122013. The reversal of 20101220122010 is 1022102210102.

It is an interprime number because it is at equal distance from previous prime (20101220122007) and next prime (20101220122013).

It is not an unprimeable number, because it can be changed into a prime (20101220122013) 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, 52897947500 + ... + 52897947879.

It is an arithmetic number, because the mean of its divisors is an integer number (2380407646050).

Almost surely, 2^{20101220122010} is an apocalyptic number.

20101220122010 is a deficient number, since it is larger than the sum of its proper divisors (17985302214790).

20101220122010 is a wasteful number, since it uses less digits than its factorization.

20101220122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105795895405.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20101220122010 its reverse (1022102210102), we get a palindrome (21123322332112).

The spelling of 20101220122010 in words is "twenty trillion, one hundred one billion, two hundred twenty million, one hundred twenty-two thousand, ten".