101000121222 has 128 divisors (see below), whose sum is σ = 278547913728. Its totient is φ = 23561280000.

The previous prime is 101000121197. The next prime is 101000121293. The reversal of 101000121222 is 222121000101.

It is a junction number, because it is equal to n+sod(n) for n = 101000121198 and 101000121207.

It is a congruent number.

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, 5029 + ... + 449472.

It is an arithmetic number, because the mean of its divisors is an integer number (2176155576).

Almost surely, 2^101000121222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101000121222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139273956864).

101000121222 is an abundant number, since it is smaller than the sum of its proper divisors (177547792506).

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

101000121222 is a wasteful number, since it uses less digits than its factorization.

101000121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454574.

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

Adding to 101000121222 its reverse (222121000101), we get a palindrome (323121121323).

It can be divided in two parts, 101000 and 121222, that added together give a palindrome (222222).

The spelling of 101000121222 in words is "one hundred one billion, one hundred twenty-one thousand, two hundred twenty-two".