20111212101302 has 16 divisors (see below), whose sum is σ = 34476434244000. Its totient is φ = 8619073240128.

The previous prime is 20111212101217. The next prime is 20111212101317. The reversal of 20111212101302 is 20310121211102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7484324 + ... + 9810072.

It is an arithmetic number, because the mean of its divisors is an integer number (2154777140250).

Almost surely, 2^{20111212101302} is an apocalyptic number.

20111212101302 is a deficient number, since it is larger than the sum of its proper divisors (14365222142698).

20111212101302 is a wasteful number, since it uses less digits than its factorization.

20111212101302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943415.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20111212101302 its reverse (20310121211102), we get a palindrome (40421333312404).

The spelling of 20111212101302 in words is "twenty trillion, one hundred eleven billion, two hundred twelve million, one hundred one thousand, three hundred two".