1210101002121 has 32 divisors (see below), whose sum is σ = 1767075287040. Its totient is φ = 730509062400.

The previous prime is 1210101002083. The next prime is 1210101002137. The reversal of 1210101002121 is 1212001010121.

It is not a de Polignac number, because 1210101002121 - 2¹⁰ = 1210101001097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210101002097 and 1210101002106.

It is not an unprimeable number, because it can be changed into a prime (1210101002171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42545521 + ... + 42573953.

It is an arithmetic number, because the mean of its divisors is an integer number (55221102720).

Almost surely, 2^{1210101002121} is an apocalyptic number.

1210101002121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1210101002121 is a deficient number, since it is larger than the sum of its proper divisors (556974284919).

1210101002121 is a wasteful number, since it uses less digits than its factorization.

1210101002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33477.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1210101002121 its reverse (1212001010121), we get a palindrome (2422102012242).

The spelling of 1210101002121 in words is "one trillion, two hundred ten billion, one hundred one million, two thousand, one hundred twenty-one".