200122010001221 has 48 divisors (see below), whose sum is σ = 254954772637824. Its totient is φ = 153731799936000.

The previous prime is 200122010001197. The next prime is 200122010001239. The reversal of 200122010001221 is 122100010221002.

It is not a de Polignac number, because 200122010001221 - 2⁶ = 200122010001157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200122010001196 and 200122010001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200122010001281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132867926 + ... + 134365656.

It is an arithmetic number, because the mean of its divisors is an integer number (5311557763288).

Almost surely, 2^{200122010001221} is an apocalyptic number.

It is an amenable number.

200122010001221 is a deficient number, since it is larger than the sum of its proper divisors (54832762636603).

200122010001221 is a wasteful number, since it uses less digits than its factorization.

200122010001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499994 (or 1499983 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200122010001221 its reverse (122100010221002), we get a palindrome (322222020222223).

The spelling of 200122010001221 in words is "two hundred trillion, one hundred twenty-two billion, ten million, one thousand, two hundred twenty-one".