210122121022 has 64 divisors (see below), whose sum is σ = 380455916544. Its totient is φ = 85932887040.

The previous prime is 210122121007. The next prime is 210122121023. The reversal of 210122121022 is 220121221012.

It is a happy number.

210122121022 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210122120987 and 210122121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122121023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 616858 + ... + 894850.

It is an arithmetic number, because the mean of its divisors is an integer number (5944623696).

Almost surely, 2^210122121022 is an apocalyptic number.

210122121022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210122121022 is a deficient number, since it is larger than the sum of its proper divisors (170333795522).

210122121022 is a wasteful number, since it uses less digits than its factorization.

210122121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278113.

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

Adding to 210122121022 its reverse (220121221012), we get a palindrome (430243342034).

The spelling of 210122121022 in words is "two hundred ten billion, one hundred twenty-two million, one hundred twenty-one thousand, twenty-two".