120221202121012 has 24 divisors (see below), whose sum is σ = 217644095045160. Its totient is φ = 58037218081920.

The previous prime is 120221202120989. The next prime is 120221202121073. The reversal of 120221202121012 is 210121202122021.

It can be written as a sum of positive squares in 4 ways, for example, as 2373590097316 + 117847612023696 = 1540646^2 + 10855764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5913378 + ... + 16595494.

It is an arithmetic number, because the mean of its divisors is an integer number (9068503960215).

Almost surely, 2^{120221202121012} is an apocalyptic number.

It is an amenable number.

120221202121012 is a deficient number, since it is larger than the sum of its proper divisors (97422892924148).

120221202121012 is a wasteful number, since it uses less digits than its factorization.

120221202121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10779171 (or 10779169 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120221202121012 its reverse (210121202122021), we get a palindrome (330342404243033).

The spelling of 120221202121012 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred two million, one hundred twenty-one thousand, twelve".