111212020220001 has 8 divisors (see below), whose sum is σ = 157005205016544. Its totient is φ = 69780091118400.

The previous prime is 111212020219997. The next prime is 111212020220051. The reversal of 111212020220001 is 100022020212111.

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

It is not a de Polignac number, because 111212020220001 - 2² = 111212020219997 is a prime.

It is a super-2 number, since 2×111212020220001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111212020220051) 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, 1090313923675 + ... + 1090313923776.

It is an arithmetic number, because the mean of its divisors is an integer number (19625650627068).

Almost surely, 2^{111212020220001} is an apocalyptic number.

It is an amenable number.

111212020220001 is a deficient number, since it is larger than the sum of its proper divisors (45793184796543).

111212020220001 is a wasteful number, since it uses less digits than its factorization.

111212020220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180627847471.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111212020220001 its reverse (100022020212111), we get a palindrome (211234040432112).

The spelling of 111212020220001 in words is "one hundred eleven trillion, two hundred twelve billion, twenty million, two hundred twenty thousand, one".