1232221330021 has 32 divisors (see below), whose sum is σ = 1405543539456. Its totient is φ = 1070322240000.

The previous prime is 1232221330007. The next prime is 1232221330037. The reversal of 1232221330021 is 1200331222321.

It is a cyclic number.

It is not a de Polignac number, because 1232221330021 - 2³¹ = 1230073846373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232221329974 and 1232221330001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232221337021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13267696 + ... + 13360246.

It is an arithmetic number, because the mean of its divisors is an integer number (43923235608).

Almost surely, 2^{1232221330021} is an apocalyptic number.

1232221330021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1232221330021 is a deficient number, since it is larger than the sum of its proper divisors (173322209435).

1232221330021 is a wasteful number, since it uses less digits than its factorization.

1232221330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93213.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1232221330021 its reverse (1200331222321), we get a palindrome (2432552552342).

The spelling of 1232221330021 in words is "one trillion, two hundred thirty-two billion, two hundred twenty-one million, three hundred thirty thousand, twenty-one".