11221220121098 has 8 divisors (see below), whose sum is σ = 18126586349508. Its totient is φ = 5179024671264.

The previous prime is 11221220121047. The next prime is 11221220121179. The reversal of 11221220121098 is 89012102212211.

It can be written as a sum of positive squares in 2 ways, for example, as 11060593108009 + 160627013089 = 3325747^2 + 400783^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11221220121098² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215792694611 + ... + 215792694662.

Almost surely, 2^{11221220121098} is an apocalyptic number.

11221220121098 is a deficient number, since it is larger than the sum of its proper divisors (6905366228410).

11221220121098 is a wasteful number, since it uses less digits than its factorization.

11221220121098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431585389288.

The product of its (nonzero) digits is 2304, while the sum is 32.

The spelling of 11221220121098 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty million, one hundred twenty-one thousand, ninety-eight".