1212212201202 has 48 divisors (see below), whose sum is σ = 2655837804672. Its totient is φ = 399561213600.

The previous prime is 1212212201171. The next prime is 1212212201203. The reversal of 1212212201202 is 2021022122121.

It is a happy number.

1212212201202 is a `hidden beast` number, since 1 + 21 + 221 + 220 + 1 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1212212201203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1007143 + ... + 1854389.

It is an arithmetic number, because the mean of its divisors is an integer number (55329954264).

Almost surely, 2^{1212212201202} is an apocalyptic number.

1212212201202 is an abundant number, since it is smaller than the sum of its proper divisors (1443625603470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212212201202 is a wasteful number, since it uses less digits than its factorization.

1212212201202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848143 (or 848140 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1212212201202 its reverse (2021022122121), we get a palindrome (3233234323323).

The spelling of 1212212201202 in words is "one trillion, two hundred twelve billion, two hundred twelve million, two hundred one thousand, two hundred two".