111122002121001 has 8 divisors (see below), whose sum is σ = 150192295104480. Its totient is φ = 73066521942432.

The previous prime is 111122002120981. The next prime is 111122002121069. The reversal of 111122002121001 is 100121200221111.

It is a happy number.

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

It is not a de Polignac number, because 111122002121001 - 2²² = 111121997926697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111122002123001) 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, 253703200971 + ... + 253703201408.

It is an arithmetic number, because the mean of its divisors is an integer number (18774036888060).

Almost surely, 2^{111122002121001} is an apocalyptic number.

It is an amenable number.

111122002121001 is a deficient number, since it is larger than the sum of its proper divisors (39070292983479).

111122002121001 is an equidigital number, since it uses as much as digits as its factorization.

111122002121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507406402455.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111122002121001 its reverse (100121200221111), we get a palindrome (211243202342112).

The spelling of 111122002121001 in words is "one hundred eleven trillion, one hundred twenty-two billion, two million, one hundred twenty-one thousand, one".