1201221212202 has 64 divisors (see below), whose sum is σ = 3083348592000. Its totient is φ = 342594282240.

The previous prime is 1201221212171. The next prime is 1201221212239. The reversal of 1201221212202 is 2022121221021.

It is a happy number.

1201221212202 is a `hidden beast` number, since 1 + 201 + 221 + 21 + 220 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59468077 + ... + 59488272.

It is an arithmetic number, because the mean of its divisors is an integer number (48177321750).

Almost surely, 2^{1201221212202} is an apocalyptic number.

1201221212202 is an abundant number, since it is smaller than the sum of its proper divisors (1882127379798).

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

1201221212202 is a wasteful number, since it uses less digits than its factorization.

1201221212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118956388 (or 118956382 counting only the distinct ones).

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

Adding to 1201221212202 its reverse (2022121221021), we get a palindrome (3223342433223).

The spelling of 1201221212202 in words is "one trillion, two hundred one billion, two hundred twenty-one million, two hundred twelve thousand, two hundred two".