1001121020122 has 8 divisors (see below), whose sum is σ = 1526299260372. Its totient is φ = 492354600000.

The previous prime is 1001121020117. The next prime is 1001121020143. The reversal of 1001121020122 is 2210201211001.

It can be written as a sum of positive squares in 2 ways, for example, as 1000578083521 + 542936601 = 1000289^2 + 23301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1001121020122² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4102954879 + ... + 4102955122.

Almost surely, 2^{1001121020122} is an apocalyptic number.

1001121020122 is a deficient number, since it is larger than the sum of its proper divisors (525178240250).

1001121020122 is an equidigital number, since it uses as much as digits as its factorization.

1001121020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8205910064.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1001121020122 its reverse (2210201211001), we get a palindrome (3211322231123).

The spelling of 1001121020122 in words is "one trillion, one billion, one hundred twenty-one million, twenty thousand, one hundred twenty-two".