120200221020121 has 16 divisors (see below), whose sum is σ = 131254854131520. Its totient is φ = 109166862407680.

The previous prime is 120200221020107. The next prime is 120200221020137. The reversal of 120200221020121 is 121020122002021.

It is a happy number.

It is not a de Polignac number, because 120200221020121 - 2⁹ = 120200221019609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120200221020095 and 120200221020104.

It is not an unprimeable number, because it can be changed into a prime (120200221020161) 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, 45830145 + ... + 48381841.

It is an arithmetic number, because the mean of its divisors is an integer number (8203428383220).

Almost surely, 2^{120200221020121} is an apocalyptic number.

120200221020121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120200221020121 is a deficient number, since it is larger than the sum of its proper divisors (11054633111399).

120200221020121 is a wasteful number, since it uses less digits than its factorization.

120200221020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555864.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120200221020121 its reverse (121020122002021), we get a palindrome (241220343022142).

The spelling of 120200221020121 in words is "one hundred twenty trillion, two hundred billion, two hundred twenty-one million, twenty thousand, one hundred twenty-one".