1001121122 has 16 divisors (see below), whose sum is σ = 1554328440. Its totient is φ = 483030912.

The previous prime is 1001121119. The next prime is 1001121131. The reversal of 1001121122 is 2211211001.

It can be written as a sum of positive squares in 4 ways, for example, as 752459761 + 248661361 = 27431^2 + 15769^2 .

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, 135188 + ... + 142400.

Almost surely, 2^1001121122 is an apocalyptic number.

1001121122 is a deficient number, since it is larger than the sum of its proper divisors (553207318).

1001121122 is a wasteful number, since it uses less digits than its factorization.

1001121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9637.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1001121122 is about 31640.4981313506. The cubic root of 1001121122 is about 1000.3735677631.

Adding to 1001121122 its reverse (2211211001), we get a palindrome (3212332123).

The spelling of 1001121122 in words is "one billion, one million, one hundred twenty-one thousand, one hundred twenty-two".