1212210102021 has 8 divisors (see below), whose sum is σ = 1616395402080. Its totient is φ = 808082434992.

The previous prime is 1212210102011. The next prime is 1212210102029. The reversal of 1212210102021 is 1202010122121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1212210102021 - 2³³ = 1203620167429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210102029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14359155 + ... + 14443328.

It is an arithmetic number, because the mean of its divisors is an integer number (202049425260).

Almost surely, 2^{1212210102021} is an apocalyptic number.

It is an amenable number.

1212210102021 is a deficient number, since it is larger than the sum of its proper divisors (404185300059).

1212210102021 is a wasteful number, since it uses less digits than its factorization.

1212210102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28816515.

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

Adding to 1212210102021 its reverse (1202010122121), we get a palindrome (2414220224142).

The spelling of 1212210102021 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred two thousand, twenty-one".