1000121220022 has 4 divisors (see below), whose sum is σ = 1500181830036. Its totient is φ = 500060610010.

The previous prime is 1000121220011. The next prime is 1000121220029. The reversal of 1000121220022 is 2200221210001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1000121219984 and 1000121220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000121220029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250030305004 + ... + 250030305007.

It is an arithmetic number, because the mean of its divisors is an integer number (375045457509).

Almost surely, 2^{1000121220022} is an apocalyptic number.

1000121220022 is a deficient number, since it is larger than the sum of its proper divisors (500060610014).

1000121220022 is an equidigital number, since it uses as much as digits as its factorization.

1000121220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500060610013.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1000121220022 its reverse (2200221210001), we get a palindrome (3200342430023).

The spelling of 1000121220022 in words is "one trillion, one hundred twenty-one million, two hundred twenty thousand, twenty-two".