1201000121022 has 32 divisors (see below), whose sum is σ = 2586838671648. Its totient is φ = 369528615936.

The previous prime is 1201000121021. The next prime is 1201000121029. The reversal of 1201000121022 is 2201210001021.

It is a junction number, because it is equal to n+sod(n) for n = 1201000120989 and 1201000121007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201000121021) 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, 3059158 + ... + 3429350.

It is an arithmetic number, because the mean of its divisors is an integer number (80838708489).

Almost surely, 2^{1201000121022} is an apocalyptic number.

1201000121022 is an abundant number, since it is smaller than the sum of its proper divisors (1385838550626).

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

1201000121022 is a wasteful number, since it uses less digits than its factorization.

1201000121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411804.

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

Adding to 1201000121022 its reverse (2201210001021), we get a palindrome (3402210122043).

The spelling of 1201000121022 in words is "one trillion, two hundred one billion, one hundred twenty-one thousand, twenty-two".