222020121001 has 4 divisors (see below), whose sum is σ = 253737281152. Its totient is φ = 190302960852.

The previous prime is 222020120999. The next prime is 222020121017. The reversal of 222020121001 is 100121020222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100121020222 = 2 ⋅50060510111.

It is a cyclic number.

It is not a de Polignac number, because 222020121001 - 2¹ = 222020120999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222020181001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15858580065 + ... + 15858580078.

It is an arithmetic number, because the mean of its divisors is an integer number (63434320288).

Almost surely, 2^222020121001 is an apocalyptic number.

It is an amenable number.

222020121001 is a deficient number, since it is larger than the sum of its proper divisors (31717160151).

222020121001 is an equidigital number, since it uses as much as digits as its factorization.

222020121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31717160150.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222020121001 its reverse (100121020222), we get a palindrome (322141141223).

The spelling of 222020121001 in words is "two hundred twenty-two billion, twenty million, one hundred twenty-one thousand, one".