20022011211111 has 48 divisors (see below), whose sum is σ = 33038089311744. Its totient is φ = 10560765301632.

The previous prime is 20022011211101. The next prime is 20022011211127. The reversal of 20022011211111 is 11111211022002.

It is a happy number.

It is not a de Polignac number, because 20022011211111 - 2¹⁵ = 20022011178343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022011211101) 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, 193890585 + ... + 193993821.

It is an arithmetic number, because the mean of its divisors is an integer number (688293527328).

Almost surely, 2^{20022011211111} is an apocalyptic number.

20022011211111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20022011211111 is a deficient number, since it is larger than the sum of its proper divisors (13016078100633).

20022011211111 is a wasteful number, since it uses less digits than its factorization.

20022011211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157920 (or 157907 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20022011211111 its reverse (11111211022002), we get a palindrome (31133222233113).

The spelling of 20022011211111 in words is "twenty trillion, twenty-two billion, eleven million, two hundred eleven thousand, one hundred eleven".