1011212242 has 4 divisors (see below), whose sum is σ = 1516818366. Its totient is φ = 505606120.

The previous prime is 1011212231. The next prime is 1011212249. The reversal of 1011212242 is 2422121101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 712302721 + 298909521 = 26689^2 + 17289^2 .

It is not an unprimeable number, because it can be changed into a prime (1011212249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252803059 + ... + 252803062.

Almost surely, 2^1011212242 is an apocalyptic number.

1011212242 is a deficient number, since it is larger than the sum of its proper divisors (505606124).

1011212242 is an equidigital number, since it uses as much as digits as its factorization.

1011212242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505606123.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1011212242 is about 31799.5635504640. The cubic root of 1011212242 is about 1003.7235321002.

Adding to 1011212242 its reverse (2422121101), we get a palindrome (3433333343).

The spelling of 1011212242 in words is "one billion, eleven million, two hundred twelve thousand, two hundred forty-two".