1000221121262 has 8 divisors (see below), whose sum is σ = 1636725471192. Its totient is φ = 454645964200.

The previous prime is 1000221121261. The next prime is 1000221121267. The reversal of 1000221121262 is 2621211220001.

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

It is a super-2 number, since 2×1000221121262² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000221121261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22732298189 + ... + 22732298232.

It is an arithmetic number, because the mean of its divisors is an integer number (204590683899).

Almost surely, 2^{1000221121262} is an apocalyptic number.

1000221121262 is a deficient number, since it is larger than the sum of its proper divisors (636504349930).

1000221121262 is a wasteful number, since it uses less digits than its factorization.

1000221121262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45464596434.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1000221121262 its reverse (2621211220001), we get a palindrome (3621432341263).

The spelling of 1000221121262 in words is "one trillion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred sixty-two".