122021020221 has 16 divisors (see below), whose sum is σ = 171684680640. Its totient is φ = 76873708800.

The previous prime is 122021020217. The next prime is 122021020229. The reversal of 122021020221 is 122020120221.

It is not a de Polignac number, because 122021020221 - 2² = 122021020217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122021020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021020229) 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, 2646370 + ... + 2692083.

It is an arithmetic number, because the mean of its divisors is an integer number (10730292540).

Almost surely, 2^122021020221 is an apocalyptic number.

It is an amenable number.

122021020221 is a deficient number, since it is larger than the sum of its proper divisors (49663660419).

122021020221 is a wasteful number, since it uses less digits than its factorization.

122021020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5338876.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122021020221 its reverse (122020120221), we get a palindrome (244041140442).

The spelling of 122021020221 in words is "one hundred twenty-two billion, twenty-one million, twenty thousand, two hundred twenty-one".