122021020121210 has 64 divisors (see below), whose sum is σ = 260747819608320. Its totient is φ = 40225558625280.

The previous prime is 122021020121207. The next prime is 122021020121213. The reversal of 122021020121210 is 12121020120221.

It is an interprime number because it is at equal distance from previous prime (122021020121207) and next prime (122021020121213).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122021020121213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124217984 + ... + 125196443.

It is an arithmetic number, because the mean of its divisors is an integer number (4074184681380).

Almost surely, 2^{122021020121210} is an apocalyptic number.

122021020121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122021020121210 is an abundant number, since it is smaller than the sum of its proper divisors (138726799487110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122021020121210 is a wasteful number, since it uses less digits than its factorization.

122021020121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249414711.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122021020121210 its reverse (12121020120221), we get a palindrome (134142040241431).

The spelling of 122021020121210 in words is "one hundred twenty-two trillion, twenty-one billion, twenty million, one hundred twenty-one thousand, two hundred ten".