321221332102 has 32 divisors (see below), whose sum is σ = 548727934464. Its totient is φ = 139600507200.

The previous prime is 321221332093. The next prime is 321221332121. The reversal of 321221332102 is 201233122123.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032018 + ... + 1306714.

It is an arithmetic number, because the mean of its divisors is an integer number (17147747952).

Almost surely, 2^321221332102 is an apocalyptic number.

321221332102 is a deficient number, since it is larger than the sum of its proper divisors (227506602362).

321221332102 is a wasteful number, since it uses less digits than its factorization.

321221332102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277044.

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

Adding to 321221332102 its reverse (201233122123), we get a palindrome (522454454225).

It can be divided in two parts, 32122 and 1332102, that added together give a square (1364224 = 1168²).

The spelling of 321221332102 in words is "three hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, one hundred two".