10121222220210 has 64 divisors (see below), whose sum is σ = 26990284296960. Its totient is φ = 2698956754560.

The previous prime is 10121222220203. The next prime is 10121222220211. The reversal of 10121222220210 is 1202222212101.

It is a happy number.

10121222220210 is a `hidden beast` number, since 1 + 0 + 1 + 212 + 22 + 220 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (10121222220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24773190 + ... + 25178430.

It is an arithmetic number, because the mean of its divisors is an integer number (421723192140).

Almost surely, 2^{10121222220210} is an apocalyptic number.

10121222220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10121222220210 is an abundant number, since it is smaller than the sum of its proper divisors (16869062076750).

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

10121222220210 is a wasteful number, since it uses less digits than its factorization.

10121222220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497760 (or 497754 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10121222220210 its reverse (1202222212101), we get a palindrome (11323444432311).

The spelling of 10121222220210 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred twenty thousand, two hundred ten".