120212002100221 has 32 divisors (see below), whose sum is σ = 128386456473600. Its totient is φ = 112234190302080.

The previous prime is 120212002100209. The next prime is 120212002100233. The reversal of 120212002100221 is 122001200212021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120212002100209) and next prime (120212002100233).

It is a cyclic number.

It is not a de Polignac number, because 120212002100221 - 2⁷ = 120212002100093 is a prime.

It is a super-2 number, since 2×120212002100221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120212002100195 and 120212002100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212002100251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375362800 + ... + 375682918.

It is an arithmetic number, because the mean of its divisors is an integer number (4012076764800).

Almost surely, 2^{120212002100221} is an apocalyptic number.

It is an amenable number.

120212002100221 is a deficient number, since it is larger than the sum of its proper divisors (8174454373379).

120212002100221 is a wasteful number, since it uses less digits than its factorization.

120212002100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321169.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120212002100221 its reverse (122001200212021), we get a palindrome (242213202312242).

The spelling of 120212002100221 in words is "one hundred twenty trillion, two hundred twelve billion, two million, one hundred thousand, two hundred twenty-one".