20121011011222 has 32 divisors (see below), whose sum is σ = 34769642169600. Its totient is φ = 8636689850400.

The previous prime is 20121011011217. The next prime is 20121011011247. The reversal of 20121011011222 is 22211011012102.

It is a super-2 number, since 2×20121011011222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20121011011196 and 20121011011205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77259697 + ... + 77519692.

It is an arithmetic number, because the mean of its divisors is an integer number (1086551317800).

Almost surely, 2^{20121011011222} is an apocalyptic number.

20121011011222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20121011011222 is a deficient number, since it is larger than the sum of its proper divisors (14648631158378).

20121011011222 is a wasteful number, since it uses less digits than its factorization.

20121011011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154779732.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20121011011222 its reverse (22211011012102), we get a palindrome (42332022023324).

The spelling of 20121011011222 in words is "twenty trillion, one hundred twenty-one billion, eleven million, eleven thousand, two hundred twenty-two".