22001112101010 has 128 divisors (see below), whose sum is σ = 60461193222144. Its totient is φ = 5019221329920.

The previous prime is 22001112100997. The next prime is 22001112101147. The reversal of 22001112101010 is 1010121110022.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1103521762 + ... + 1103541698.

It is an arithmetic number, because the mean of its divisors is an integer number (472353072048).

Almost surely, 2^{22001112101010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22001112101010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30230596611072).

22001112101010 is an abundant number, since it is smaller than the sum of its proper divisors (38460081121134).

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

22001112101010 is a wasteful number, since it uses less digits than its factorization.

22001112101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29728.

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

Adding to 22001112101010 its reverse (1010121110022), we get a palindrome (23011233211032).

The spelling of 22001112101010 in words is "twenty-two trillion, one billion, one hundred twelve million, one hundred one thousand, ten".