20101210122010 has 32 divisors (see below), whose sum is σ = 37446780449232. Its totient is φ = 7763504824320.

The previous prime is 20101210121999. The next prime is 20101210122053. The reversal of 20101210122010 is 1022101210102.

It can be written as a sum of positive squares in 8 ways, for example, as 586276581969 + 19514933540041 = 765687^2 + 4417571^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252678487 + ... + 252758026.

Almost surely, 2^{20101210122010} is an apocalyptic number.

20101210122010 is a deficient number, since it is larger than the sum of its proper divisors (17345570327222).

20101210122010 is a wasteful number, since it uses less digits than its factorization.

20101210122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505436658.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20101210122010 its reverse (1022101210102), we get a palindrome (21123311332112).

The spelling of 20101210122010 in words is "twenty trillion, one hundred one billion, two hundred ten million, one hundred twenty-two thousand, ten".