1211101098 has 32 divisors (see below), whose sum is σ = 2473428096. Its totient is φ = 395244288.

The previous prime is 1211101093. The next prime is 1211101139. The reversal of 1211101098 is 8901011121.

It is not an unprimeable number, because it can be changed into a prime (1211101093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49915 + ... + 70097.

It is an arithmetic number, because the mean of its divisors is an integer number (77294628).

Almost surely, 2^1211101098 is an apocalyptic number.

1211101098 is an abundant number, since it is smaller than the sum of its proper divisors (1262326998).

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

1211101098 is a wasteful number, since it uses less digits than its factorization.

1211101098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20398.

The product of its (nonzero) digits is 144, while the sum is 24.

The square root of 1211101098 is about 34800.8778337559. The cubic root of 1211101098 is about 1065.9253708606.

The spelling of 1211101098 in words is "one billion, two hundred eleven million, one hundred one thousand, ninety-eight".