20012121222122 has 8 divisors (see below), whose sum is σ = 30137776183872. Its totient is φ = 9966195827500.

The previous prime is 20012121222091. The next prime is 20012121222131. The reversal of 20012121222122 is 22122212121002.

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

It is a junction number, because it is equal to n+sod(n) for n = 20012121222094 and 20012121222103.

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, 19932391154 + ... + 19932392157.

It is an arithmetic number, because the mean of its divisors is an integer number (3767222022984).

Almost surely, 2^{20012121222122} is an apocalyptic number.

20012121222122 is a deficient number, since it is larger than the sum of its proper divisors (10125654961750).

20012121222122 is a wasteful number, since it uses less digits than its factorization.

20012121222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39864783564.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20012121222122 its reverse (22122212121002), we get a palindrome (42134333343124).

The spelling of 20012121222122 in words is "twenty trillion, twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".