221311210002122 has 8 divisors (see below), whose sum is σ = 331991988836256. Its totient is φ = 110647213723372.

The previous prime is 221311210002101. The next prime is 221311210002137. The reversal of 221311210002122 is 221200012113122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221311210002094 and 221311210002103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4195605878 + ... + 4195658625.

It is an arithmetic number, because the mean of its divisors is an integer number (41498998604532).

Almost surely, 2^{221311210002122} is an apocalyptic number.

221311210002122 is a deficient number, since it is larger than the sum of its proper divisors (110680778834134).

221311210002122 is a wasteful number, since it uses less digits than its factorization.

221311210002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8391277692.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 221311210002122 its reverse (221200012113122), we get a palindrome (442511222115244).

The spelling of 221311210002122 in words is "two hundred twenty-one trillion, three hundred eleven billion, two hundred ten million, two thousand, one hundred twenty-two".