1202200222221 has 6 divisors (see below), whose sum is σ = 1736511432110. Its totient is φ = 801466814808.

The previous prime is 1202200222211. The next prime is 1202200222319. The reversal of 1202200222221 is 1222220022021.

1202200222221 is a `hidden beast` number, since 1 + 2 + 0 + 220 + 0 + 222 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1073946706596 + 128253515625 = 1036314^2 + 358125^2 .

It is not a de Polignac number, because 1202200222221 - 2¹⁵ = 1202200189453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202200222194 and 1202200222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202200222211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66788901226 + ... + 66788901243.

Almost surely, 2^{1202200222221} is an apocalyptic number.

It is an amenable number.

1202200222221 is a deficient number, since it is larger than the sum of its proper divisors (534311209889).

1202200222221 is a wasteful number, since it uses less digits than its factorization.

1202200222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133577802475 (or 133577802472 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1202200222221 its reverse (1222220022021), we get a palindrome (2424420244242).

The spelling of 1202200222221 in words is "one trillion, two hundred two billion, two hundred million, two hundred twenty-two thousand, two hundred twenty-one".