1202221999965 has 32 divisors (see below), whose sum is σ = 2199868323840. Its totient is φ = 549207319104.

The previous prime is 1202221999963. The next prime is 1202221999987. The reversal of 1202221999965 is 5699991222021.

It is not a de Polignac number, because 1202221999965 - 2¹ = 1202221999963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202221999963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3804435 + ... + 4108304.

It is an arithmetic number, because the mean of its divisors is an integer number (68745885120).

Almost surely, 2^{1202221999965} is an apocalyptic number.

1202221999965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1202221999965 is a deficient number, since it is larger than the sum of its proper divisors (997646323875).

1202221999965 is a wasteful number, since it uses less digits than its factorization.

1202221999965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7914201.

The product of its (nonzero) digits is 3149280, while the sum is 57.

The spelling of 1202221999965 in words is "one trillion, two hundred two billion, two hundred twenty-one million, nine hundred ninety-nine thousand, nine hundred sixty-five".