1020112021211 has 8 divisors (see below), whose sum is σ = 1105237648944. Its totient is φ = 937777397760.

The previous prime is 1020112021151. The next prime is 1020112021249. The reversal of 1020112021211 is 1121202110201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020112021211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020112021261) 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, 697750310 + ... + 697751771.

It is an arithmetic number, because the mean of its divisors is an integer number (138154706118).

Almost surely, 2^{1020112021211} is an apocalyptic number.

1020112021211 is a deficient number, since it is larger than the sum of its proper divisors (85125627733).

1020112021211 is a wasteful number, since it uses less digits than its factorization.

1020112021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395502141.

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

Adding to 1020112021211 its reverse (1121202110201), we get a palindrome (2141314131412).

The spelling of 1020112021211 in words is "one trillion, twenty billion, one hundred twelve million, twenty-one thousand, two hundred eleven".