122121222121022 has 4 divisors (see below), whose sum is σ = 183181833181536. Its totient is φ = 61060611060510.

The previous prime is 122121222121013. The next prime is 122121222121033. The reversal of 122121222121022 is 220121222121221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30530305530254 + ... + 30530305530257.

It is an arithmetic number, because the mean of its divisors is an integer number (45795458295384).

Almost surely, 2^{122121222121022} is an apocalyptic number.

122121222121022 is a deficient number, since it is larger than the sum of its proper divisors (61060611060514).

122121222121022 is an equidigital number, since it uses as much as digits as its factorization.

122121222121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61060611060513.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 122121222121022 its reverse (220121222121221), we get a palindrome (342242444242243).

The spelling of 122121222121022 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, twenty-two".