1210202120001 has 48 divisors (see below), whose sum is σ = 1909193932800. Its totient is φ = 679704977952.

The previous prime is 1210202119993. The next prime is 1210202120053. The reversal of 1210202120001 is 1000212020121.

It is not a de Polignac number, because 1210202120001 - 2³ = 1210202119993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210202122001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81857056 + ... + 81871838.

It is an arithmetic number, because the mean of its divisors is an integer number (39774873600).

Almost surely, 2^{1210202120001} is an apocalyptic number.

It is an amenable number.

1210202120001 is a deficient number, since it is larger than the sum of its proper divisors (698991812799).

1210202120001 is a wasteful number, since it uses less digits than its factorization.

1210202120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24298 (or 24291 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1210202120001 its reverse (1000212020121), we get a palindrome (2210414140122).

The spelling of 1210202120001 in words is "one trillion, two hundred ten billion, two hundred two million, one hundred twenty thousand, one".