11220201987 has 8 divisors (see below), whose sum is σ = 15610715904. Its totient is φ = 7154911368.

The previous prime is 11220201973. The next prime is 11220201989. The reversal of 11220201987 is 78910202211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11220201987 - 2⁸ = 11220201731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220201989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81305743 + ... + 81305880.

It is an arithmetic number, because the mean of its divisors is an integer number (1951339488).

Almost surely, 2^11220201987 is an apocalyptic number.

11220201987 is a deficient number, since it is larger than the sum of its proper divisors (4390513917).

11220201987 is a wasteful number, since it uses less digits than its factorization.

11220201987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162611649.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 11220201987 in words is "eleven billion, two hundred twenty million, two hundred one thousand, nine hundred eighty-seven".