1001010021122 has 4 divisors (see below), whose sum is σ = 1501515031686. Its totient is φ = 500505010560.

The previous prime is 1001010021103. The next prime is 1001010021127. The reversal of 1001010021122 is 2211200101001.

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., 545602345201 + 455407675921 = 738649^2 + 674839^2 .

It is a super-2 number, since 2×1001010021122² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001010021127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250252505279 + ... + 250252505282.

Almost surely, 2^{1001010021122} is an apocalyptic number.

1001010021122 is a deficient number, since it is larger than the sum of its proper divisors (500505010564).

1001010021122 is an equidigital number, since it uses as much as digits as its factorization.

1001010021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500505010563.

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

Adding to 1001010021122 its reverse (2211200101001), we get a palindrome (3212210122123).

The spelling of 1001010021122 in words is "one trillion, one billion, ten million, twenty-one thousand, one hundred twenty-two".