1212121122322 has 16 divisors (see below), whose sum is σ = 1984329284544. Its totient is φ = 550725714000.

The previous prime is 1212121122319. The next prime is 1212121122343. The reversal of 1212121122322 is 2232211212121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1212121122293 and 1212121122302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11869629 + ... + 11971312.

It is an arithmetic number, because the mean of its divisors is an integer number (124020580284).

Almost surely, 2^{1212121122322} is an apocalyptic number.

1212121122322 is a deficient number, since it is larger than the sum of its proper divisors (772208162222).

1212121122322 is a wasteful number, since it uses less digits than its factorization.

1212121122322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23843265.

The product of its digits is 384, while the sum is 22.

Adding to 1212121122322 its reverse (2232211212121), we get a palindrome (3444332334443).

The spelling of 1212121122322 in words is "one trillion, two hundred twelve billion, one hundred twenty-one million, one hundred twenty-two thousand, three hundred twenty-two".