10121220101010 has 512 divisors, whose sum is σ = 28020473856000. Its totient is φ = 2325818880000.

The previous prime is 10121220100997. The next prime is 10121220101059. The reversal of 10121220101010 is 1010102212101.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 8793413935 + ... + 8793415085.

It is an arithmetic number, because the mean of its divisors is an integer number (54727488000).

Almost surely, 2^{10121220101010} is an apocalyptic number.

10121220101010 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 10121220101010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14010236928000).

10121220101010 is an abundant number, since it is smaller than the sum of its proper divisors (17899253754990).

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

10121220101010 is a wasteful number, since it uses less digits than its factorization.

10121220101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10121220101010 its reverse (1010102212101), we get a palindrome (11131322313111).

The spelling of 10121220101010 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty million, one hundred one thousand, ten".