1020022201111 has 4 divisors (see below), whose sum is σ = 1044900791424. Its totient is φ = 995143610800.

The previous prime is 1020022201067. The next prime is 1020022201139. The reversal of 1020022201111 is 1111022200201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020022201111 - 2²¹ = 1020020103959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020022201091 and 1020022201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020022201141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12439295095 + ... + 12439295176.

It is an arithmetic number, because the mean of its divisors is an integer number (261225197856).

Almost surely, 2^{1020022201111} is an apocalyptic number.

1020022201111 is a deficient number, since it is larger than the sum of its proper divisors (24878590313).

1020022201111 is an equidigital number, since it uses as much as digits as its factorization.

1020022201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24878590312.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020022201111 its reverse (1111022200201), we get a palindrome (2131044401312).

The spelling of 1020022201111 in words is "one trillion, twenty billion, twenty-two million, two hundred one thousand, one hundred eleven".