101221000000102 has 4 divisors (see below), whose sum is σ = 151831500000156. Its totient is φ = 50610500000050.

The previous prime is 101221000000033. The next prime is 101221000000129. The reversal of 101221000000102 is 201000000122101.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25305250000024 + ... + 25305250000027.

It is an arithmetic number, because the mean of its divisors is an integer number (37957875000039).

Almost surely, 2^{101221000000102} is an apocalyptic number.

101221000000102 is a deficient number, since it is larger than the sum of its proper divisors (50610500000054).

101221000000102 is an equidigital number, since it uses as much as digits as its factorization.

101221000000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50610500000053.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101221000000102 its reverse (201000000122101), we get a palindrome (302221000122203).

The spelling of 101221000000102 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred two", and thus it is an aban number.