1060021221 has 16 divisors (see below), whose sum is σ = 1649639424. Its totient is φ = 592838064.

The previous prime is 1060021189. The next prime is 1060021279. The reversal of 1060021221 is 1221200601.

It is not a de Polignac number, because 1060021221 - 2⁵ = 1060021189 is a prime.

It is a super-2 number, since 2×1060021221² = 2247289977940661682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1060021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1060021321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536005 + ... + 537978.

It is an arithmetic number, because the mean of its divisors is an integer number (103102464).

Almost surely, 2^1060021221 is an apocalyptic number.

It is an amenable number.

1060021221 is a deficient number, since it is larger than the sum of its proper divisors (589618203).

1060021221 is a wasteful number, since it uses less digits than its factorization.

1060021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074040.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1060021221 is about 32557.9670894852. The cubic root of 1060021221 is about 1019.6196265289.

Adding to 1060021221 its reverse (1221200601), we get a palindrome (2281221822).

The spelling of 1060021221 in words is "one billion, sixty million, twenty-one thousand, two hundred twenty-one".