321120221101020 has 96 divisors (see below), whose sum is σ = 1089862568605440. Its totient is φ = 77847326326080.

The previous prime is 321120221101003. The next prime is 321120221101039. The reversal of 321120221101020 is 20101122021123.

321120221101020 is a `hidden beast` number, since 321 + 1 + 2 + 0 + 221 + 101 + 0 + 20 = 666.

It is a super-2 number, since 2×321120221101020² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 321120221100984 and 321120221101002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27030315702 + ... + 27030327581.

It is an arithmetic number, because the mean of its divisors is an integer number (11352735089640).

Almost surely, 2^{321120221101020} is an apocalyptic number.

321120221101020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321120221101020 is an abundant number, since it is smaller than the sum of its proper divisors (768742347504420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321120221101020 is a wasteful number, since it uses less digits than its factorization.

321120221101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54060643312 (or 54060643304 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 321120221101020 its reverse (20101122021123), we get a palindrome (341221343122143).

The spelling of 321120221101020 in words is "three hundred twenty-one trillion, one hundred twenty billion, two hundred twenty-one million, one hundred one thousand, twenty".