101222121010 has 32 divisors (see below), whose sum is σ = 188115789312. Its totient is φ = 39174723840.

The previous prime is 101222120999. The next prime is 101222121019. The reversal of 101222121010 is 10121222101.

It is not an unprimeable number, because it can be changed into a prime (101222121019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1611249 + ... + 1672891.

It is an arithmetic number, because the mean of its divisors is an integer number (5878618416).

Almost surely, 2^101222121010 is an apocalyptic number.

101222121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101222121010 is a deficient number, since it is larger than the sum of its proper divisors (86893668302).

101222121010 is a wasteful number, since it uses less digits than its factorization.

101222121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66978.

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

Adding to 101222121010 its reverse (10121222101), we get a palindrome (111343343111).

The spelling of 101222121010 in words is "one hundred one billion, two hundred twenty-two million, one hundred twenty-one thousand, ten".