1020210111211 has 16 divisors (see below), whose sum is σ = 1127697139008. Its totient is φ = 918035712000.

The previous prime is 1020210111199. The next prime is 1020210111241. The reversal of 1020210111211 is 1121110120201.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020210111211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020210111191 and 1020210111200.

It is not an unprimeable number, because it can be changed into a prime (1020210111241) 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, 281011 + ... + 1455811.

It is an arithmetic number, because the mean of its divisors is an integer number (70481071188).

Almost surely, 2^{1020210111211} is an apocalyptic number.

1020210111211 is a deficient number, since it is larger than the sum of its proper divisors (107487027797).

1020210111211 is a wasteful number, since it uses less digits than its factorization.

1020210111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177062.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1020210111211 its reverse (1121110120201), we get a palindrome (2141320231412).

The spelling of 1020210111211 in words is "one trillion, twenty billion, two hundred ten million, one hundred eleven thousand, two hundred eleven".