1002220202111 has 4 divisors (see below), whose sum is σ = 1008368792472. Its totient is φ = 996071611752.

The previous prime is 1002220202063. The next prime is 1002220202147. The reversal of 1002220202111 is 1112020222001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002220202111 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 (1002220202161) 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, 3074294936 + ... + 3074295261.

It is an arithmetic number, because the mean of its divisors is an integer number (252092198118).

Almost surely, 2^{1002220202111} is an apocalyptic number.

1002220202111 is a deficient number, since it is larger than the sum of its proper divisors (6148590361).

1002220202111 is an equidigital number, since it uses as much as digits as its factorization.

1002220202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6148590360.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1002220202111 its reverse (1112020222001), we get a palindrome (2114240424112).

The spelling of 1002220202111 in words is "one trillion, two billion, two hundred twenty million, two hundred two thousand, one hundred eleven".