120200022201521 has 2 divisors, whose sum is σ = 120200022201522. Its totient is φ = 120200022201520.

The previous prime is 120200022201509. The next prime is 120200022201577. The reversal of 120200022201521 is 125102220002021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117996860868496 + 2203161333025 = 10862636^2 + 1484305^2 .

It is a cyclic number.

It is not a de Polignac number, because 120200022201521 - 2¹⁴ = 120200022185137 is a prime.

It is a super-2 number, since 2×120200022201521² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120200022201493 and 120200022201502.

It is not a weakly prime, because it can be changed into another prime (120200022200521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60100011100760 + 60100011100761.

It is an arithmetic number, because the mean of its divisors is an integer number (60100011100761).

Almost surely, 2^{120200022201521} is an apocalyptic number.

It is an amenable number.

120200022201521 is a deficient number, since it is larger than the sum of its proper divisors (1).

120200022201521 is an equidigital number, since it uses as much as digits as its factorization.

120200022201521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 120200022201521 its reverse (125102220002021), we get a palindrome (245302242203542).

The spelling of 120200022201521 in words is "one hundred twenty trillion, two hundred billion, twenty-two million, two hundred one thousand, five hundred twenty-one".