4521111212 has 6 divisors (see below), whose sum is σ = 7911944628. Its totient is φ = 2260555604.

The previous prime is 4521111209. The next prime is 4521111229. The reversal of 4521111212 is 2121111254.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565138898 + ... + 565138905.

It is an arithmetic number, because the mean of its divisors is an integer number (1318657438).

Almost surely, 2^4521111212 is an apocalyptic number.

It is an amenable number.

4521111212 is a deficient number, since it is larger than the sum of its proper divisors (3390833416).

4521111212 is a wasteful number, since it uses less digits than its factorization.

4521111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130277807 (or 1130277805 counting only the distinct ones).

The product of its digits is 160, while the sum is 20.

The square root of 4521111212 is about 67239.2088888619. The cubic root of 4521111212 is about 1653.5413637421.

Adding to 4521111212 its reverse (2121111254), we get a palindrome (6642222466).

The spelling of 4521111212 in words is "four billion, five hundred twenty-one million, one hundred eleven thousand, two hundred twelve".