121222121202022 has 4 divisors (see below), whose sum is σ = 181833181803036. Its totient is φ = 60611060601010.

The previous prime is 121222121202019. The next prime is 121222121202023. The reversal of 121222121202022 is 220202121222121.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 121222121201984 and 121222121202002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222121202023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30305530300504 + ... + 30305530300507.

It is an arithmetic number, because the mean of its divisors is an integer number (45458295450759).

Almost surely, 2^{121222121202022} is an apocalyptic number.

121222121202022 is a deficient number, since it is larger than the sum of its proper divisors (60611060601014).

121222121202022 is an equidigital number, since it uses as much as digits as its factorization.

121222121202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60611060601013.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121222121202022 its reverse (220202121222121), we get a palindrome (341424242424143).

The spelling of 121222121202022 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred two thousand, twenty-two".