1211021211202 has 24 divisors (see below), whose sum is σ = 2004638748336. Its totient is φ = 548271075000.

The previous prime is 1211021211149. The next prime is 1211021211209. The reversal of 1211021211202 is 2021121201121.

It is not an unprimeable number, because it can be changed into a prime (1211021211209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9907824 + ... + 10029307.

It is an arithmetic number, because the mean of its divisors is an integer number (83526614514).

Almost surely, 2^{1211021211202} is an apocalyptic number.

1211021211202 is a deficient number, since it is larger than the sum of its proper divisors (793617537134).

1211021211202 is a wasteful number, since it uses less digits than its factorization.

1211021211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19937406 (or 19937395 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1211021211202 its reverse (2021121201121), we get a palindrome (3232142412323).

The spelling of 1211021211202 in words is "one trillion, two hundred eleven billion, twenty-one million, two hundred eleven thousand, two hundred two".