121222210002222 has 64 divisors (see below), whose sum is σ = 285007797089280. Its totient is φ = 33646753264896.

The previous prime is 121222210002161. The next prime is 121222210002247. The reversal of 121222210002222 is 222200012222121.

121222210002222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59277847 + ... + 61288722.

It is an arithmetic number, because the mean of its divisors is an integer number (4453246829520).

Almost surely, 2^{121222210002222} is an apocalyptic number.

121222210002222 is an abundant number, since it is smaller than the sum of its proper divisors (163785587087058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121222210002222 is a wasteful number, since it uses less digits than its factorization.

121222210002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120567265.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121222210002222 its reverse (222200012222121), we get a palindrome (343422222224343).

The spelling of 121222210002222 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred ten million, two thousand, two hundred twenty-two".