2221121102099 has 8 divisors (see below), whose sum is σ = 2303871580560. Its totient is φ = 2138781296736.

The previous prime is 2221121102071. The next prime is 2221121102107. The reversal of 2221121102099 is 9902011211222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221121102099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221121102009) 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, 102657257 + ... + 102678890.

It is an arithmetic number, because the mean of its divisors is an integer number (287983947570).

Almost surely, 2^{2221121102099} is an apocalyptic number.

2221121102099 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2221121102099 is a deficient number, since it is larger than the sum of its proper divisors (82750478461).

2221121102099 is a wasteful number, since it uses less digits than its factorization.

2221121102099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205336549.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 2221121102099 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred two thousand, ninety-nine".