1210220211202 has 4 divisors (see below), whose sum is σ = 1815330316806. Its totient is φ = 605110105600.

The previous prime is 1210220211197. The next prime is 1210220211203. The reversal of 1210220211202 is 2021120220121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1195477637641 + 14742573561 = 1093379^2 + 121419^2 .

It is not an unprimeable number, because it can be changed into a prime (1210220211203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302555052799 + ... + 302555052802.

Almost surely, 2^{1210220211202} is an apocalyptic number.

1210220211202 is a deficient number, since it is larger than the sum of its proper divisors (605110105604).

1210220211202 is an equidigital number, since it uses as much as digits as its factorization.

1210220211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605110105603.

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

Adding to 1210220211202 its reverse (2021120220121), we get a palindrome (3231340431323).

The spelling of 1210220211202 in words is "one trillion, two hundred ten billion, two hundred twenty million, two hundred eleven thousand, two hundred two".