101222121234 has 32 divisors (see below), whose sum is σ = 218060821440. Its totient is φ = 31138990272.

The previous prime is 101222121233. The next prime is 101222121277. The reversal of 101222121234 is 432121222101.

It is a happy number.

It is a super-2 number, since 2×101222121234² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101222121234.

It is not an unprimeable number, because it can be changed into a prime (101222121233) 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, 266344 + ... + 522860.

It is an arithmetic number, because the mean of its divisors is an integer number (6814400670).

Almost surely, 2^101222121234 is an apocalyptic number.

101222121234 is an abundant number, since it is smaller than the sum of its proper divisors (116838700206).

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

101222121234 is a wasteful number, since it uses less digits than its factorization.

101222121234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261594.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 101222121234 its reverse (432121222101), we get a palindrome (533343343335).

The spelling of 101222121234 in words is "one hundred one billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred thirty-four".