20122212211020 has 144 divisors (see below), whose sum is σ = 65462132867040. Its totient is φ = 4987590985728.

The previous prime is 20122212210983. The next prime is 20122212211043. The reversal of 20122212211020 is 2011221222102.

It is a happy number.

20122212211020 is a `hidden beast` number, since 201 + 2 + 221 + 221 + 1 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20122212210984 and 20122212211002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55325229 + ... + 55687748.

It is an arithmetic number, because the mean of its divisors is an integer number (454598144910).

Almost surely, 2^{20122212211020} is an apocalyptic number.

20122212211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122212211020 is an abundant number, since it is smaller than the sum of its proper divisors (45339920656020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20122212211020 is a wasteful number, since it uses less digits than its factorization.

20122212211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111013064 (or 111013059 counting only the distinct ones).

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

Adding to 20122212211020 its reverse (2011221222102), we get a palindrome (22133433433122).

The spelling of 20122212211020 in words is "twenty trillion, one hundred twenty-two billion, two hundred twelve million, two hundred eleven thousand, twenty".