1212543322 has 16 divisors (see below), whose sum is σ = 1832302080. Its totient is φ = 601792272.

The previous prime is 1212543313. The next prime is 1212543337. The reversal of 1212543322 is 2233452121.

It is a super-2 number, since 2×1212543322² = 2940522615453591368, which contains 22 as substring.

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, 156328 + ... + 163900.

It is an arithmetic number, because the mean of its divisors is an integer number (114518880).

Almost surely, 2^1212543322 is an apocalyptic number.

1212543322 is a deficient number, since it is larger than the sum of its proper divisors (619758758).

1212543322 is a wasteful number, since it uses less digits than its factorization.

1212543322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157.

The product of its digits is 2880, while the sum is 25.

The square root of 1212543322 is about 34821.5927550708. The cubic root of 1212543322 is about 1066.3483174757.

Adding to 1212543322 its reverse (2233452121), we get a palindrome (3445995443).

The spelling of 1212543322 in words is "one billion, two hundred twelve million, five hundred forty-three thousand, three hundred twenty-two".