1010212220121 has 16 divisors (see below), whose sum is σ = 1475146921920. Its totient is φ = 611132293440.

The previous prime is 1010212220119. The next prime is 1010212220141. The reversal of 1010212220121 is 1210222120101.

It is not a de Polignac number, because 1010212220121 - 2¹ = 1010212220119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010212220121.

It is not an unprimeable number, because it can be changed into a prime (1010212220111) 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 15 ways as a sum of consecutive naturals, for example, 219513610 + ... + 219518211.

It is an arithmetic number, because the mean of its divisors is an integer number (92196682620).

Almost surely, 2^{1010212220121} is an apocalyptic number.

It is an amenable number.

1010212220121 is a deficient number, since it is larger than the sum of its proper divisors (464934701799).

1010212220121 is a wasteful number, since it uses less digits than its factorization.

1010212220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439031896.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1010212220121 its reverse (1210222120101), we get a palindrome (2220434340222).

The spelling of 1010212220121 in words is "one trillion, ten billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty-one".