1022011111206 has 96 divisors (see below), whose sum is σ = 2334033636480. Its totient is φ = 335118337344.

The previous prime is 1022011111201. The next prime is 1022011111207. The reversal of 1022011111206 is 6021111102201.

It is a super-2 number, since 2×1022011111206² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022011111201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9344385 + ... + 9453123.

It is an arithmetic number, because the mean of its divisors is an integer number (24312850380).

Almost surely, 2^{1022011111206} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022011111206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167016818240).

1022011111206 is an abundant number, since it is smaller than the sum of its proper divisors (1312022525274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022011111206 is a wasteful number, since it uses less digits than its factorization.

1022011111206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109072 (or 109060 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1022011111206 its reverse (6021111102201), we get a palindrome (7043122213407).

The spelling of 1022011111206 in words is "one trillion, twenty-two billion, eleven million, one hundred eleven thousand, two hundred six".