101111021002 has 4 divisors (see below), whose sum is σ = 151666531506. Its totient is φ = 50555510500.

The previous prime is 101111020973. The next prime is 101111021029. The reversal of 101111021002 is 200120111101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 97238572561 + 3872448441 = 311831^2 + 62229^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101111021002.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25277755249 + ... + 25277755252.

Almost surely, 2^101111021002 is an apocalyptic number.

101111021002 is a deficient number, since it is larger than the sum of its proper divisors (50555510504).

101111021002 is an equidigital number, since it uses as much as digits as its factorization.

101111021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50555510503.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101111021002 its reverse (200120111101), we get a palindrome (301231132103).

Subtracting 101111021002 from its reverse (200120111101), we obtain a palindrome (99009090099).

The spelling of 101111021002 in words is "one hundred one billion, one hundred eleven million, twenty-one thousand, two".