3211121103220 has 24 divisors (see below), whose sum is σ = 7140022218504. Its totient is φ = 1208892650496.

The previous prime is 3211121103209. The next prime is 3211121103313. The reversal of 3211121103220 is 223011211123.

It can be written as a sum of positive squares in 4 ways, for example, as 751907499876 + 2459213603344 = 867126^2 + 1568188^2 .

It is a super-2 number, since 2×3211121103220² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4722236577 + ... + 4722237256.

It is an arithmetic number, because the mean of its divisors is an integer number (297500925771).

Almost surely, 2^{3211121103220} is an apocalyptic number.

It is an amenable number.

3211121103220 is an abundant number, since it is smaller than the sum of its proper divisors (3928901115284).

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

3211121103220 is a wasteful number, since it uses less digits than its factorization.

3211121103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9444473859 (or 9444473857 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 3211121103220 its reverse (223011211123), we get a palindrome (3434132314343).

The spelling of 3211121103220 in words is "three trillion, two hundred eleven billion, one hundred twenty-one million, one hundred three thousand, two hundred twenty".