1212121021202 has 48 divisors (see below), whose sum is σ = 2281887256320. Its totient is φ = 478643491872.

The previous prime is 1212121021159. The next prime is 1212121021211. The reversal of 1212121021202 is 2021201212121.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172802 + ... + 1566557.

It is an arithmetic number, because the mean of its divisors is an integer number (47539317840).

Almost surely, 2^{1212121021202} is an apocalyptic number.

1212121021202 is a deficient number, since it is larger than the sum of its proper divisors (1069766235118).

1212121021202 is a wasteful number, since it uses less digits than its factorization.

1212121021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739935 (or 1739928 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1212121021202 its reverse (2021201212121), we get a palindrome (3233322233323).

The spelling of 1212121021202 in words is "one trillion, two hundred twelve billion, one hundred twenty-one million, twenty-one thousand, two hundred two".