1202221111212 has 72 divisors (see below), whose sum is σ = 3316993522752. Its totient is φ = 364114072800.

The previous prime is 1202221111141. The next prime is 1202221111291. The reversal of 1202221111212 is 2121111222021.

1202221111212 is a `hidden beast` number, since 120 + 2 + 221 + 111 + 212 = 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 23 ways as a sum of consecutive naturals, for example, 73714 + ... + 1552377.

Almost surely, 2^{1202221111212} is an apocalyptic number.

1202221111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202221111212 is an abundant number, since it is smaller than the sum of its proper divisors (2114772411540).

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

1202221111212 is a wasteful number, since it uses less digits than its factorization.

1202221111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627979 (or 1627974 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1202221111212 its reverse (2121111222021), we get a palindrome (3323332333233).

The spelling of 1202221111212 in words is "one trillion, two hundred two billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twelve".