201110212020021 has 8 divisors (see below), whose sum is σ = 268733704174464. Its totient is φ = 133780097272800.

The previous prime is 201110212020013. The next prime is 201110212020023. The reversal of 201110212020021 is 120020212011102.

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

It is not a de Polignac number, because 201110212020021 - 2³ = 201110212020013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201110212020023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73344350205 + ... + 73344352946.

It is an arithmetic number, because the mean of its divisors is an integer number (33591713021808).

Almost surely, 2^{201110212020021} is an apocalyptic number.

It is an amenable number.

201110212020021 is a deficient number, since it is larger than the sum of its proper divisors (67623492154443).

201110212020021 is a wasteful number, since it uses less digits than its factorization.

201110212020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146688703611.

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

Adding to 201110212020021 its reverse (120020212011102), we get a palindrome (321130424031123).

The spelling of 201110212020021 in words is "two hundred one trillion, one hundred ten billion, two hundred twelve million, twenty thousand, twenty-one".