3212220121 has 8 divisors (see below), whose sum is σ = 3504751488. Its totient is φ = 2919774000.

The previous prime is 3212220113. The next prime is 3212220139. The reversal of 3212220121 is 1210222123.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3212220121 - 2³ = 3212220113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3212220095 and 3212220104.

It is not an unprimeable number, because it can be changed into a prime (3212220421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77376 + ... + 111406.

It is an arithmetic number, because the mean of its divisors is an integer number (438093936).

Almost surely, 2^3212220121 is an apocalyptic number.

It is an amenable number.

3212220121 is a deficient number, since it is larger than the sum of its proper divisors (292531367).

3212220121 is a wasteful number, since it uses less digits than its factorization.

3212220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42623.

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

The square root of 3212220121 is about 56676.4512032996. The cubic root of 3212220121 is about 1475.4860213542.

Adding to 3212220121 its reverse (1210222123), we get a palindrome (4422442244).

The spelling of 3212220121 in words is "three billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty-one".