1211120211098 has 48 divisors (see below), whose sum is σ = 2122794656640. Its totient is φ = 516716270784.

The previous prime is 1211120211097. The next prime is 1211120211139. The reversal of 1211120211098 is 8901120211121.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1211120211098.

It is not an unprimeable number, because it can be changed into a prime (1211120211097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100310390 + ... + 100322462.

It is an arithmetic number, because the mean of its divisors is an integer number (44224888680).

Almost surely, 2^{1211120211098} is an apocalyptic number.

1211120211098 is a deficient number, since it is larger than the sum of its proper divisors (911674445542).

1211120211098 is a wasteful number, since it uses less digits than its factorization.

1211120211098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16611 (or 16604 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 29.

The spelling of 1211120211098 in words is "one trillion, two hundred eleven billion, one hundred twenty million, two hundred eleven thousand, ninety-eight".