1001001121202 has 4 divisors (see below), whose sum is σ = 1501501681806. Its totient is φ = 500500560600.

The previous prime is 1001001121193. The next prime is 1001001121243. The reversal of 1001001121202 is 2021211001001.

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

It can be written as a sum of positive squares in only one way, i.e., 954956973961 + 46044147241 = 977219^2 + 214579^2 .

It is a super-2 number, since 2×1001001121202² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250250280299 + ... + 250250280302.

Almost surely, 2^{1001001121202} is an apocalyptic number.

1001001121202 is a deficient number, since it is larger than the sum of its proper divisors (500500560604).

1001001121202 is an equidigital number, since it uses as much as digits as its factorization.

1001001121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500500560603.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1001001121202 its reverse (2021211001001), we get a palindrome (3022212122203).

The spelling of 1001001121202 in words is "one trillion, one billion, one million, one hundred twenty-one thousand, two hundred two".