20122222021011 has 24 divisors (see below), whose sum is σ = 33572905192944. Its totient is φ = 11477916303360.

The previous prime is 20122222021001. The next prime is 20122222021019. The reversal of 20122222021011 is 11012022222102.

It is a happy number.

20122222021011 is a `hidden beast` number, since 2 + 0 + 1 + 222 + 220 + 210 + 11 = 666.

It is not a de Polignac number, because 20122222021011 - 2⁷ = 20122222020883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20122222021019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5978079726 + ... + 5978083091.

It is an arithmetic number, because the mean of its divisors is an integer number (1398871049706).

Almost surely, 2^{20122222021011} is an apocalyptic number.

20122222021011 is a deficient number, since it is larger than the sum of its proper divisors (13450683171933).

20122222021011 is a wasteful number, since it uses less digits than its factorization.

20122222021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11956162851 (or 11956162848 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20122222021011 its reverse (11012022222102), we get a palindrome (31134244243113).

The spelling of 20122222021011 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty-two million, twenty-one thousand, eleven".