1020212111111 has 16 divisors (see below), whose sum is σ = 1084699505760. Its totient is φ = 956806732800.

The previous prime is 1020212111077. The next prime is 1020212111173. The reversal of 1020212111111 is 1111112120201.

1020212111111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020212111111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020212111311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14428235 + ... + 14498771.

It is an arithmetic number, because the mean of its divisors is an integer number (67793719110).

Almost surely, 2^{1020212111111} is an apocalyptic number.

1020212111111 is a deficient number, since it is larger than the sum of its proper divisors (64487394649).

1020212111111 is a wasteful number, since it uses less digits than its factorization.

1020212111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78194.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1020212111111 its reverse (1111112120201), we get a palindrome (2131324231312).

The spelling of 1020212111111 in words is "one trillion, twenty billion, two hundred twelve million, one hundred eleven thousand, one hundred eleven".