1011212122 has 16 divisors (see below), whose sum is σ = 1636348392. Its totient is φ = 466885120.

The previous prime is 1011212117. The next prime is 1011212143. The reversal of 1011212122 is 2212121101.

It can be written as a sum of positive squares in 4 ways, for example, as 782264961 + 228947161 = 27969^2 + 15131^2 .

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, 278779 + ... + 282382.

Almost surely, 2^1011212122 is an apocalyptic number.

1011212122 is a deficient number, since it is larger than the sum of its proper divisors (625136270).

1011212122 is a wasteful number, since it uses less digits than its factorization.

1011212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561233.

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

The square root of 1011212122 is about 31799.5616636456. The cubic root of 1011212122 is about 1003.7234923964.

Adding to 1011212122 its reverse (2212121101), we get a palindrome (3223333223).

The spelling of 1011212122 in words is "one billion, eleven million, two hundred twelve thousand, one hundred twenty-two".