122221023002021 has 16 divisors (see below), whose sum is σ = 134557388192640. Its totient is φ = 110498278809600.

The previous prime is 122221023002009. The next prime is 122221023002041. The reversal of 122221023002021 is 120200320122221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122221023002021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122221023001984 and 122221023002002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221023002041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322769180 + ... + 323147621.

It is an arithmetic number, because the mean of its divisors is an integer number (8409836762040).

Almost surely, 2^{122221023002021} is an apocalyptic number.

It is an amenable number.

122221023002021 is a deficient number, since it is larger than the sum of its proper divisors (12336365190619).

122221023002021 is a wasteful number, since it uses less digits than its factorization.

122221023002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645917276.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 122221023002021 its reverse (120200320122221), we get a palindrome (242421343124242).

The spelling of 122221023002021 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, twenty-three million, two thousand, twenty-one".