1201212122202 has 48 divisors (see below), whose sum is σ = 2632791021120. Its totient is φ = 395766461376.

The previous prime is 1201212122197. The next prime is 1201212122203. The reversal of 1201212122202 is 2022212121021.

It is a happy number.

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 (1201212122203) 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, 4495113 + ... + 4754835.

It is an arithmetic number, because the mean of its divisors is an integer number (54849812940).

Almost surely, 2^{1201212122202} is an apocalyptic number.

1201212122202 is an abundant number, since it is smaller than the sum of its proper divisors (1431578898918).

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

1201212122202 is a wasteful number, since it uses less digits than its factorization.

1201212122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262707 (or 262704 counting only the distinct ones).

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

Adding to 1201212122202 its reverse (2022212121021), we get a palindrome (3223424243223).

The spelling of 1201212122202 in words is "one trillion, two hundred one billion, two hundred twelve million, one hundred twenty-two thousand, two hundred two".