221020001231002 has 8 divisors (see below), whose sum is σ = 332753359787712. Its totient is φ = 110102214635100.

The previous prime is 221020001230979. The next prime is 221020001231083. The reversal of 221020001231002 is 200132100020122.

It is a happy number.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 203892989524 + ... + 203892990607.

It is an arithmetic number, because the mean of its divisors is an integer number (41594169973464).

Almost surely, 2^{221020001231002} is an apocalyptic number.

221020001231002 is a deficient number, since it is larger than the sum of its proper divisors (111733358556710).

221020001231002 is a wasteful number, since it uses less digits than its factorization.

221020001231002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407785980404.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221020001231002 its reverse (200132100020122), we get a palindrome (421152101251124).

The spelling of 221020001231002 in words is "two hundred twenty-one trillion, twenty billion, one million, two hundred thirty-one thousand, two".