120212111002221 has 48 divisors (see below), whose sum is σ = 203817521875968. Its totient is φ = 66833209900800.

The previous prime is 120212111002183. The next prime is 120212111002253. The reversal of 120212111002221 is 122200111212021.

120212111002221 is a `hidden beast` number, since 120 + 212 + 1 + 110 + 0 + 2 + 221 = 666.

It is not a de Polignac number, because 120212111002221 - 2¹⁰ = 120212111001197 is a prime.

It is a super-2 number, since 2×120212111002221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120212111002194 and 120212111002203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212111004221) 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, 53826276 + ... + 56015106.

It is an arithmetic number, because the mean of its divisors is an integer number (4246198372416).

Almost surely, 2^{120212111002221} is an apocalyptic number.

It is an amenable number.

120212111002221 is a deficient number, since it is larger than the sum of its proper divisors (83605410873747).

120212111002221 is a wasteful number, since it uses less digits than its factorization.

120212111002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212442 (or 2212439 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120212111002221 its reverse (122200111212021), we get a palindrome (242412222214242).

The spelling of 120212111002221 in words is "one hundred twenty trillion, two hundred twelve billion, one hundred eleven million, two thousand, two hundred twenty-one".