1011121098 has 16 divisors (see below), whose sum is σ = 2177799456. Its totient is φ = 311114160.

The previous prime is 1011121093. The next prime is 1011121103. The reversal of 1011121098 is 8901211101.

It is an interprime number because it is at equal distance from previous prime (1011121093) and next prime (1011121103).

It is not an unprimeable number, because it can be changed into a prime (1011121091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6481468 + ... + 6481623.

It is an arithmetic number, because the mean of its divisors is an integer number (136112466).

Almost surely, 2^1011121098 is an apocalyptic number.

1011121098 is an abundant number, since it is smaller than the sum of its proper divisors (1166678358).

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

1011121098 is a wasteful number, since it uses less digits than its factorization.

1011121098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12963109.

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

The square root of 1011121098 is about 31798.1304167399. The cubic root of 1011121098 is about 1003.6933748550.

Adding to 1011121098 its reverse (8901211101), we get a palindrome (9912332199).

The spelling of 1011121098 in words is "one billion, eleven million, one hundred twenty-one thousand, ninety-eight".