1200000101022 has 80 divisors (see below), whose sum is σ = 2705507557632. Its totient is φ = 397531825920.

The previous prime is 1200000100991. The next prime is 1200000101057. The reversal of 1200000101022 is 2201010000021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1200000100995 and 1200000101013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33925698 + ... + 33961050.

Almost surely, 2^{1200000101022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200000101022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1352753778816).

1200000101022 is an abundant number, since it is smaller than the sum of its proper divisors (1505507456610).

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

1200000101022 is a wasteful number, since it uses less digits than its factorization.

1200000101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36655 (or 36646 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1200000101022 its reverse (2201010000021), we get a palindrome (3401010101043).

The spelling of 1200000101022 in words is "one trillion, two hundred billion, one hundred one thousand, twenty-two".