1201021122209 has 8 divisors (see below), whose sum is σ = 1264848599040. Its totient is φ = 1137255229296.

The previous prime is 1201021122199. The next prime is 1201021122221. The reversal of 1201021122209 is 9022211201021.

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

It is not a de Polignac number, because 1201021122209 - 2⁸ = 1201021121953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201021122229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15355937 + ... + 15433950.

It is an arithmetic number, because the mean of its divisors is an integer number (158106074880).

Almost surely, 2^{1201021122209} is an apocalyptic number.

1201021122209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1201021122209 is a deficient number, since it is larger than the sum of its proper divisors (63827476831).

1201021122209 is a wasteful number, since it uses less digits than its factorization.

1201021122209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30791959.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 1201021122209 in words is "one trillion, two hundred one billion, twenty-one million, one hundred twenty-two thousand, two hundred nine".