20101212110102 has 4 divisors (see below), whose sum is σ = 30151818165156. Its totient is φ = 10050606055050.

The previous prime is 20101212110099. The next prime is 20101212110123. The reversal of 20101212110102 is 20101121210102.

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

It is a super-2 number, since 2×20101212110102² (a number of 27 digits) contains 22 as substring.

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, 5025303027524 + ... + 5025303027527.

It is an arithmetic number, because the mean of its divisors is an integer number (7537954541289).

Almost surely, 2^{20101212110102} is an apocalyptic number.

20101212110102 is a deficient number, since it is larger than the sum of its proper divisors (10050606055054).

20101212110102 is a wasteful number, since it uses less digits than its factorization.

20101212110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050606055053.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20101212110102 its reverse (20101121210102), we get a palindrome (40202333320204).

The spelling of 20101212110102 in words is "twenty trillion, one hundred one billion, two hundred twelve million, one hundred ten thousand, one hundred two".