121112220021022 has 4 divisors (see below), whose sum is σ = 181668330031536. Its totient is φ = 60556110010510.

The previous prime is 121112220020947. The next prime is 121112220021059. The reversal of 121112220021022 is 220120022211121.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30278055005254 + ... + 30278055005257.

It is an arithmetic number, because the mean of its divisors is an integer number (45417082507884).

Almost surely, 2^{121112220021022} is an apocalyptic number.

121112220021022 is a deficient number, since it is larger than the sum of its proper divisors (60556110010514).

121112220021022 is an equidigital number, since it uses as much as digits as its factorization.

121112220021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60556110010513.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121112220021022 its reverse (220120022211121), we get a palindrome (341232242232143).

The spelling of 121112220021022 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twenty million, twenty-one thousand, twenty-two".