32120021100220 has 48 divisors (see below), whose sum is σ = 68888002877568. Its totient is φ = 12574498941440.

The previous prime is 32120021100203. The next prime is 32120021100301. The reversal of 32120021100220 is 2200112002123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 32120021100194 and 32120021100203.

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, 115237344 + ... + 115515736.

It is an arithmetic number, because the mean of its divisors is an integer number (1435166726616).

Almost surely, 2^{32120021100220} is an apocalyptic number.

It is an amenable number.

32120021100220 is an abundant number, since it is smaller than the sum of its proper divisors (36767981777348).

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

32120021100220 is a wasteful number, since it uses less digits than its factorization.

32120021100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401190 (or 401188 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 32120021100220 its reverse (2200112002123), we get a palindrome (34320133102343).

The spelling of 32120021100220 in words is "thirty-two trillion, one hundred twenty billion, twenty-one million, one hundred thousand, two hundred twenty".