120021211100213 has 16 divisors (see below), whose sum is σ = 127545456709440. Its totient is φ = 112548830351616.

The previous prime is 120021211100117. The next prime is 120021211100221. The reversal of 120021211100213 is 312001112120021.

It is a happy number.

It is not a de Polignac number, because 120021211100213 - 2¹⁶ = 120021211034677 is a prime.

It is a super-2 number, since 2×120021211100213² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120021211100191 and 120021211100200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021211100233) 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, 8722295 + ... + 17779787.

It is an arithmetic number, because the mean of its divisors is an integer number (7971591044340).

Almost surely, 2^{120021211100213} is an apocalyptic number.

It is an amenable number.

120021211100213 is a deficient number, since it is larger than the sum of its proper divisors (7524245609227).

120021211100213 is a wasteful number, since it uses less digits than its factorization.

120021211100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9060356.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 120021211100213 its reverse (312001112120021), we get a palindrome (432022323220234).

The spelling of 120021211100213 in words is "one hundred twenty trillion, twenty-one billion, two hundred eleven million, one hundred thousand, two hundred thirteen".