122100020002221 has 8 divisors (see below), whose sum is σ = 164042774965344. Its totient is φ = 80778639186960.

The previous prime is 122100020002171. The next prime is 122100020002223. The reversal of 122100020002221 is 122200020001221.

122100020002221 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 122100020002221 - 2¹⁸ = 122100019740077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122100020002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100020002223) 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, 155343536506 + ... + 155343537291.

It is an arithmetic number, because the mean of its divisors is an integer number (20505346870668).

Almost surely, 2^{122100020002221} is an apocalyptic number.

It is an amenable number.

122100020002221 is a deficient number, since it is larger than the sum of its proper divisors (41942754963123).

122100020002221 is a wasteful number, since it uses less digits than its factorization.

122100020002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310687073931.

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

Adding to 122100020002221 its reverse (122200020001221), we get a palindrome (244300040003442).

The spelling of 122100020002221 in words is "one hundred twenty-two trillion, one hundred billion, twenty million, two thousand, two hundred twenty-one".