20012220122 has 8 divisors (see below), whose sum is σ = 30030505536. Its totient is φ = 10002051612.

The previous prime is 20012220119. The next prime is 20012220131. The reversal of 20012220122 is 22102221002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20012220122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20012220097 and 20012220106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2023058 + ... + 2032925.

It is an arithmetic number, because the mean of its divisors is an integer number (3753813192).

Almost surely, 2^20012220122 is an apocalyptic number.

20012220122 is a deficient number, since it is larger than the sum of its proper divisors (10018285414).

20012220122 is a wasteful number, since it uses less digits than its factorization.

20012220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058452.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20012220122 its reverse (22102221002), we get a palindrome (42114441124).

The spelling of 20012220122 in words is "twenty billion, twelve million, two hundred twenty thousand, one hundred twenty-two".