101121021222 has 96 divisors (see below), whose sum is σ = 233934451488. Its totient is φ = 29024206848.

The previous prime is 101121021217. The next prime is 101121021223. The reversal of 101121021222 is 222120121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101121021223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1921938 + ... + 1973850.

It is an arithmetic number, because the mean of its divisors is an integer number (2436817203).

Almost surely, 2^101121021222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101121021222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116967225744).

101121021222 is an abundant number, since it is smaller than the sum of its proper divisors (132813430266).

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

101121021222 is a wasteful number, since it uses less digits than its factorization.

101121021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52074 (or 52061 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101121021222 its reverse (222120121101), we get a palindrome (323241142323).

The spelling of 101121021222 in words is "one hundred one billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty-two".