1212211020202 has 16 divisors (see below), whose sum is σ = 2237928037632. Its totient is φ = 479556007920.

The previous prime is 1212211020187. The next prime is 1212211020253. The reversal of 1212211020202 is 2020201122121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3330249874 + ... + 3330250237.

It is an arithmetic number, because the mean of its divisors is an integer number (139870502352).

Almost surely, 2^{1212211020202} is an apocalyptic number.

1212211020202 is a deficient number, since it is larger than the sum of its proper divisors (1025717017430).

1212211020202 is a wasteful number, since it uses less digits than its factorization.

1212211020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660500133.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212211020202 its reverse (2020201122121), we get a palindrome (3232412142323).

The spelling of 1212211020202 in words is "one trillion, two hundred twelve billion, two hundred eleven million, twenty thousand, two hundred two".