1012211122 has 8 divisors (see below), whose sum is σ = 1635110316. Its totient is φ = 467174352.

The previous prime is 1012211107. The next prime is 1012211131. The reversal of 1012211122 is 2211122101.

It can be written as a sum of positive squares in 2 ways, for example, as 836887041 + 175324081 = 28929^2 + 13241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19465573 + ... + 19465624.

Almost surely, 2^1012211122 is an apocalyptic number.

1012211122 is a deficient number, since it is larger than the sum of its proper divisors (622899194).

1012211122 is a wasteful number, since it uses less digits than its factorization.

1012211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38931212.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1012211122 is about 31815.2655497326. The cubic root of 1012211122 is about 1004.0539175448.

Adding to 1012211122 its reverse (2211122101), we get a palindrome (3223333223).

It can be divided in two parts, 101 and 2211122, that multiplied together give a palindrome (223323322).

The spelling of 1012211122 in words is "one billion, twelve million, two hundred eleven thousand, one hundred twenty-two".