1211130116 has 24 divisors (see below), whose sum is σ = 2564747136. Its totient is φ = 488522880.

The previous prime is 1211130101. The next prime is 1211130121. The reversal of 1211130116 is 6110311121.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 1211130094 and 1211130103.

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, 1271720 + ... + 1272671.

It is an arithmetic number, because the mean of its divisors is an integer number (106864464).

Almost surely, 2^1211130116 is an apocalyptic number.

It is an amenable number.

1211130116 is an abundant number, since it is smaller than the sum of its proper divisors (1353617020).

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

1211130116 is a wasteful number, since it uses less digits than its factorization.

1211130116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544419 (or 2544417 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1211130116 is about 34801.2947460292. The cubic root of 1211130116 is about 1065.9338839885.

Adding to 1211130116 its reverse (6110311121), we get a palindrome (7321441237).

The spelling of 1211130116 in words is "one billion, two hundred eleven million, one hundred thirty thousand, one hundred sixteen".