122221011001021 has 8 divisors (see below), whose sum is σ = 125064024239264. Its totient is φ = 119378027951280.

The previous prime is 122221011000971. The next prime is 122221011001097. The reversal of 122221011001021 is 120100110122221.

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

It is a cyclic number.

It is not a de Polignac number, because 122221011001021 - 2⁹ = 122221011000509 is a prime.

It is a super-2 number, since 2×122221011001021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122221011000986 and 122221011001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221011001321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749086 + ... + 15652576.

It is an arithmetic number, because the mean of its divisors is an integer number (15633003029908).

Almost surely, 2^{122221011001021} is an apocalyptic number.

It is an amenable number.

122221011001021 is a deficient number, since it is larger than the sum of its proper divisors (2843013238243).

122221011001021 is a wasteful number, since it uses less digits than its factorization.

122221011001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15094251.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122221011001021 its reverse (120100110122221), we get a palindrome (242321121123242).

The spelling of 122221011001021 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, eleven million, one thousand, twenty-one".