1211012242 has 8 divisors (see below), whose sum is σ = 1981656432. Its totient is φ = 550460100.

The previous prime is 1211012239. The next prime is 1211012263. The reversal of 1211012242 is 2422101121.

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

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, 27522984 + ... + 27523027.

It is an arithmetic number, because the mean of its divisors is an integer number (247707054).

Almost surely, 2^1211012242 is an apocalyptic number.

1211012242 is a deficient number, since it is larger than the sum of its proper divisors (770644190).

1211012242 is a wasteful number, since it uses less digits than its factorization.

1211012242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55046024.

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

The square root of 1211012242 is about 34799.6011758756. The cubic root of 1211012242 is about 1065.8993019714.

Adding to 1211012242 its reverse (2422101121), we get a palindrome (3633113363).

The spelling of 1211012242 in words is "one billion, two hundred eleven million, twelve thousand, two hundred forty-two".