1012222211 has 48 divisors (see below), whose sum is σ = 1444128000. Its totient is φ = 685048320.

The previous prime is 1012222201. The next prime is 1012222219. The reversal of 1012222211 is 1122222101.

It is a de Polignac number, because none of the positive numbers 2^k-1012222211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012222219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 287540 + ... + 291038.

It is an arithmetic number, because the mean of its divisors is an integer number (30086000).

Almost surely, 2^1012222211 is an apocalyptic number.

1012222211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1012222211 is a deficient number, since it is larger than the sum of its proper divisors (431905789).

1012222211 is a wasteful number, since it uses less digits than its factorization.

1012222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1012222211 is about 31815.4398209423. The cubic root of 1012222211 is about 1004.0575840768.

Adding to 1012222211 its reverse (1122222101), we get a palindrome (2134444312).

It can be divided in two parts, 10 and 12222211, that added together give a palindrome (12222221).

The spelling of 1012222211 in words is "one billion, twelve million, two hundred twenty-two thousand, two hundred eleven".