10101221212102 has 4 divisors (see below), whose sum is σ = 15151831818156. Its totient is φ = 5050610606050.

The previous prime is 10101221211971. The next prime is 10101221212153. The reversal of 10101221212102 is 20121212210101.

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, 2525305303024 + ... + 2525305303027.

It is an arithmetic number, because the mean of its divisors is an integer number (3787957954539).

Almost surely, 2^{10101221212102} is an apocalyptic number.

10101221212102 is a deficient number, since it is larger than the sum of its proper divisors (5050610606054).

10101221212102 is an equidigital number, since it uses as much as digits as its factorization.

10101221212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050610606053.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10101221212102 its reverse (20121212210101), we get a palindrome (30222433422203).

The spelling of 10101221212102 in words is "ten trillion, one hundred one billion, two hundred twenty-one million, two hundred twelve thousand, one hundred two".