1202220987 has 16 divisors (see below), whose sum is σ = 1755198720. Its totient is φ = 725904800.

The previous prime is 1202220979. The next prime is 1202220997. The reversal of 1202220987 is 7890222021.

It is a cyclic number.

It is not a de Polignac number, because 1202220987 - 2³ = 1202220979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1202220947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58839 + ... + 76592.

It is an arithmetic number, because the mean of its divisors is an integer number (109699920).

Almost surely, 2^1202220987 is an apocalyptic number.

1202220987 is a deficient number, since it is larger than the sum of its proper divisors (552977733).

1202220987 is a wasteful number, since it uses less digits than its factorization.

1202220987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135714.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1202220987 is about 34673.0585181060. The cubic root of 1202220987 is about 1063.3137625964.

The spelling of 1202220987 in words is "one billion, two hundred two million, two hundred twenty thousand, nine hundred eighty-seven".