21020122010110 has 16 divisors (see below), whose sum is σ = 38400939315216. Its totient is φ = 8282555538048.

The previous prime is 21020122010081. The next prime is 21020122010119. The reversal of 21020122010110 is 1101022102012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020122010119) 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, 15686657547 + ... + 15686658886.

It is an arithmetic number, because the mean of its divisors is an integer number (2400058707201).

Almost surely, 2^{21020122010110} is an apocalyptic number.

21020122010110 is a deficient number, since it is larger than the sum of its proper divisors (17380817305106).

21020122010110 is a wasteful number, since it uses less digits than its factorization.

21020122010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31373316507.

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

Adding to 21020122010110 its reverse (1101022102012), we get a palindrome (22121144112122).

The spelling of 21020122010110 in words is "twenty-one trillion, twenty billion, one hundred twenty-two million, ten thousand, one hundred ten".