221013123021032 has 8 divisors (see below), whose sum is σ = 414399605664450. Its totient is φ = 110506561510512.

The previous prime is 221013123020993. The next prime is 221013123021071. The reversal of 221013123021032 is 230120321310122.

It is an interprime number because it is at equal distance from previous prime (221013123020993) and next prime (221013123021071).

It can be written as a sum of positive squares in only one way, i.e., 165616154209636 + 55396968811396 = 12869194^2 + 7442914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 221013123020989 and 221013123021007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13813320188807 + ... + 13813320188822.

Almost surely, 2^{221013123021032} is an apocalyptic number.

It is an amenable number.

221013123021032 is a deficient number, since it is larger than the sum of its proper divisors (193386482643418).

221013123021032 is a wasteful number, since it uses less digits than its factorization.

221013123021032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27626640377635 (or 27626640377631 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 221013123021032 its reverse (230120321310122), we get a palindrome (451133444331154).

The spelling of 221013123021032 in words is "two hundred twenty-one trillion, thirteen billion, one hundred twenty-three million, twenty-one thousand, thirty-two".