32121300220 has 12 divisors (see below), whose sum is σ = 67454730504. Its totient is φ = 12848520080.

The previous prime is 32121300191. The next prime is 32121300221. The reversal of 32121300220 is 2200312123.

It is a junction number, because it is equal to n+sod(n) for n = 32121300194 and 32121300203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32121300221) 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 3 ways as a sum of consecutive naturals, for example, 803032486 + ... + 803032525.

It is an arithmetic number, because the mean of its divisors is an integer number (5621227542).

Almost surely, 2^32121300220 is an apocalyptic number.

It is an amenable number.

32121300220 is an abundant number, since it is smaller than the sum of its proper divisors (35333430284).

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

32121300220 is a wasteful number, since it uses less digits than its factorization.

32121300220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606065020 (or 1606065018 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 32121300220 its reverse (2200312123), we get a palindrome (34321612343).

The spelling of 32121300220 in words is "thirty-two billion, one hundred twenty-one million, three hundred thousand, two hundred twenty".