101220122010 has 128 divisors (see below), whose sum is σ = 290143088640. Its totient is φ = 22096521216.

The previous prime is 101220121969. The next prime is 101220122011. The reversal of 101220122010 is 10221022101.

It is not an unprimeable number, because it can be changed into a prime (101220122011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3235021 + ... + 3266159.

It is an arithmetic number, because the mean of its divisors is an integer number (2266742880).

Almost surely, 2^101220122010 is an apocalyptic number.

101220122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101220122010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145071544320).

101220122010 is an abundant number, since it is smaller than the sum of its proper divisors (188922966630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101220122010 is a wasteful number, since it uses less digits than its factorization.

101220122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31852.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101220122010 its reverse (10221022101), we get a palindrome (111441144111).

Subtracting from 101220122010 its reverse (10221022101), we obtain a palindrome (90999099909).

The spelling of 101220122010 in words is "one hundred one billion, two hundred twenty million, one hundred twenty-two thousand, ten".