20022002120111 has 6 divisors (see below), whose sum is σ = 21131254315512. Its totient is φ = 18968212534500.

The previous prime is 20022002120101. The next prime is 20022002120147. The reversal of 20022002120111 is 11102120022002.

It is a de Polignac number, because none of the positive numbers 2^k-20022002120111 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 (20022002120101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27731304515 + ... + 27731305236.

It is an arithmetic number, because the mean of its divisors is an integer number (3521875719252).

Almost surely, 2^{20022002120111} is an apocalyptic number.

20022002120111 is a deficient number, since it is larger than the sum of its proper divisors (1109252195401).

20022002120111 is an equidigital number, since it uses as much as digits as its factorization.

20022002120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55462609789 (or 55462609770 counting only the distinct ones).

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

Adding to 20022002120111 its reverse (11102120022002), we get a palindrome (31124122142113).

The spelling of 20022002120111 in words is "twenty trillion, twenty-two billion, two million, one hundred twenty thousand, one hundred eleven".