121100001098 has 16 divisors (see below), whose sum is σ = 184066399296. Its totient is φ = 59748719520.

The previous prime is 121100001047. The next prime is 121100001107. The reversal of 121100001098 is 890100001121.

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, 988136 + ... + 1103907.

It is an arithmetic number, because the mean of its divisors is an integer number (11504149956).

Almost surely, 2^121100001098 is an apocalyptic number.

121100001098 is a deficient number, since it is larger than the sum of its proper divisors (62966398198).

121100001098 is a wasteful number, since it uses less digits than its factorization.

121100001098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092429.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 121100001098 its sum of digits (23), we get a palindrome (121100001121).

The spelling of 121100001098 in words is "one hundred twenty-one billion, one hundred million, one thousand, ninety-eight".