1020212201111 has 16 divisors (see below), whose sum is σ = 1025952038496. Its totient is φ = 1014493200000.

The previous prime is 1020212201087. The next prime is 1020212201137. The reversal of 1020212201111 is 1111022120201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020212201111 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 (1020212201011) 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, 229207436 + ... + 229211886.

It is an arithmetic number, because the mean of its divisors is an integer number (64122002406).

Almost surely, 2^{1020212201111} is an apocalyptic number.

1020212201111 is a deficient number, since it is larger than the sum of its proper divisors (5739837385).

1020212201111 is a wasteful number, since it uses less digits than its factorization.

1020212201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1020212201111 its reverse (1111022120201), we get a palindrome (2131234321312).

The spelling of 1020212201111 in words is "one trillion, twenty billion, two hundred twelve million, two hundred one thousand, one hundred eleven".