121000101222 has 128 divisors (see below), whose sum is σ = 333705673728. Its totient is φ = 28226880000.

The previous prime is 121000101217. The next prime is 121000101301. The reversal of 121000101222 is 222101000121.

It is a junction number, because it is equal to n+sod(n) for n = 121000101198 and 121000101207.

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, 50029 + ... + 494472.

It is an arithmetic number, because the mean of its divisors is an integer number (2607075576).

Almost surely, 2^121000101222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121000101222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166852836864).

121000101222 is an abundant number, since it is smaller than the sum of its proper divisors (212705572506).

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

121000101222 is a wasteful number, since it uses less digits than its factorization.

121000101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544574.

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

Adding to 121000101222 its reverse (222101000121), we get a palindrome (343101101343).

It can be divided in two parts, 121000 and 101222, that added together give a palindrome (222222).

The spelling of 121000101222 in words is "one hundred twenty-one billion, one hundred one thousand, two hundred twenty-two".