3142111221 has 6 divisors (see below), whose sum is σ = 4538605110. Its totient is φ = 2094740808.

The previous prime is 3142111199. The next prime is 3142111223. The reversal of 3142111221 is 1221112413.

It can be written as a sum of positive squares in only one way, i.e., 2861180100 + 280931121 = 53490^2 + 16761^2 .

It is not a de Polignac number, because 3142111221 - 2¹⁰ = 3142110197 is a prime.

It is a super-2 number, since 2×3142111221² = 19745725850268221682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3142111194 and 3142111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142111223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174561726 + ... + 174561743.

It is an arithmetic number, because the mean of its divisors is an integer number (756434185).

Almost surely, 2^3142111221 is an apocalyptic number.

It is an amenable number.

3142111221 is a deficient number, since it is larger than the sum of its proper divisors (1396493889).

3142111221 is a wasteful number, since it uses less digits than its factorization.

3142111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349123475 (or 349123472 counting only the distinct ones).

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

The square root of 3142111221 is about 56054.5379162116. The cubic root of 3142111221 is about 1464.6724674798.

Adding to 3142111221 its reverse (1221112413), we get a palindrome (4363223634).

The spelling of 3142111221 in words is "three billion, one hundred forty-two million, one hundred eleven thousand, two hundred twenty-one".