10212020211111 has 8 divisors (see below), whose sum is σ = 13616055542640. Its totient is φ = 6807999176832.

The previous prime is 10212020211077. The next prime is 10212020211119. The reversal of 10212020211111 is 11111202021201.

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 10212020211111 - 2⁹ = 10212020210599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212020211119) 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, 1778850 + ... + 4856783.

It is an arithmetic number, because the mean of its divisors is an integer number (1702006942830).

Almost surely, 2^{10212020211111} is an apocalyptic number.

10212020211111 is a deficient number, since it is larger than the sum of its proper divisors (3404035331529).

10212020211111 is an equidigital number, since it uses as much as digits as its factorization.

10212020211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7148625.

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

Adding to 10212020211111 its reverse (11111202021201), we get a palindrome (21323222232312).

The spelling of 10212020211111 in words is "ten trillion, two hundred twelve billion, twenty million, two hundred eleven thousand, one hundred eleven".