1211107016 has 32 divisors (see below), whose sum is σ = 2624400000. Its totient is φ = 513211776.

The previous prime is 1211106991. The next prime is 1211107031. The reversal of 1211107016 is 6107011121.

It is a happy number.

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, 116516 + ... + 126483.

It is an arithmetic number, because the mean of its divisors is an integer number (82012500).

Almost surely, 2^1211107016 is an apocalyptic number.

It is an amenable number.

1211107016 is an abundant number, since it is smaller than the sum of its proper divisors (1413292984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211107016 is a wasteful number, since it uses less digits than its factorization.

1211107016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243101 (or 243097 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 20.

The square root of 1211107016 is about 34800.9628602428. The cubic root of 1211107016 is about 1065.9271070592.

Adding to 1211107016 its reverse (6107011121), we get a palindrome (7318118137).

The spelling of 1211107016 in words is "one billion, two hundred eleven million, one hundred seven thousand, sixteen".