1202221121010 has 128 divisors (see below), whose sum is σ = 3647154276864. Its totient is φ = 246799872000.

The previous prime is 1202221120993. The next prime is 1202221121011. The reversal of 1202221121010 is 101211222021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1202221121011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5849991 + ... + 6052010.

It is an arithmetic number, because the mean of its divisors is an integer number (28493392788).

Almost surely, 2^{1202221121010} is an apocalyptic number.

1202221121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1202221121010 is an abundant number, since it is smaller than the sum of its proper divisors (2444933155854).

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

1202221121010 is a wasteful number, since it uses less digits than its factorization.

1202221121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11902068.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1202221121010 its reverse (101211222021), we get a palindrome (1303432343031).

It can be divided in two parts, 1202221 and 121010, that added together give a palindrome (1323231).

The spelling of 1202221121010 in words is "one trillion, two hundred two billion, two hundred twenty-one million, one hundred twenty-one thousand, ten".