120220210021021 has 16 divisors (see below), whose sum is σ = 134784477884160. Its totient is φ = 106265774681280.

The previous prime is 120220210020943. The next prime is 120220210021027. The reversal of 120220210021021 is 120120012022021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120220210021021 - 2¹¹ = 120220210018973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120220210020986 and 120220210021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120220210021027) 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, 98716026 + ... + 99926443.

It is an arithmetic number, because the mean of its divisors is an integer number (8424029867760).

Almost surely, 2^{120220210021021} is an apocalyptic number.

120220210021021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120220210021021 is a deficient number, since it is larger than the sum of its proper divisors (14564267863139).

120220210021021 is a wasteful number, since it uses less digits than its factorization.

120220210021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198644004.

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

Adding to 120220210021021 its reverse (120120012022021), we get a palindrome (240340222043042).

The spelling of 120220210021021 in words is "one hundred twenty trillion, two hundred twenty billion, two hundred ten million, twenty-one thousand, twenty-one".