120021000211221 has 8 divisors (see below), whose sum is σ = 168450526612320. Its totient is φ = 75802736975472.

The previous prime is 120021000211127. The next prime is 120021000211223. The reversal of 120021000211221 is 122112000120021.

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

It is not a de Polignac number, because 120021000211221 - 2²⁷ = 120020865993493 is a prime.

It is a super-2 number, since 2×120021000211221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120021000211221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021000211223) 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, 1052815791270 + ... + 1052815791383.

It is an arithmetic number, because the mean of its divisors is an integer number (21056315826540).

Almost surely, 2^{120021000211221} is an apocalyptic number.

It is an amenable number.

120021000211221 is a deficient number, since it is larger than the sum of its proper divisors (48429526401099).

120021000211221 is a wasteful number, since it uses less digits than its factorization.

120021000211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105631582675.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120021000211221 its reverse (122112000120021), we get a palindrome (242133000331242).

The spelling of 120021000211221 in words is "one hundred twenty trillion, twenty-one billion, two hundred eleven thousand, two hundred twenty-one".