1202212022221 has 24 divisors (see below), whose sum is σ = 1490730576000. Its totient is φ = 963874888704.

The previous prime is 1202212022201. The next prime is 1202212022251. The reversal of 1202212022221 is 1222202122021.

It is not a de Polignac number, because 1202212022221 - 2¹⁹ = 1202211497933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202212022201) 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, 8099316 + ... + 8246413.

It is an arithmetic number, because the mean of its divisors is an integer number (62113774000).

Almost surely, 2^{1202212022221} is an apocalyptic number.

It is an amenable number.

1202212022221 is a deficient number, since it is larger than the sum of its proper divisors (288518553779).

1202212022221 is a wasteful number, since it uses less digits than its factorization.

1202212022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16345841 (or 16345834 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1202212022221 its reverse (1222202122021), we get a palindrome (2424414144242).

The spelling of 1202212022221 in words is "one trillion, two hundred two billion, two hundred twelve million, twenty-two thousand, two hundred twenty-one".