12101021212203 has 24 divisors (see below), whose sum is σ = 21792315257856. Its totient is φ = 6286244785200.

The previous prime is 12101021212201. The next prime is 12101021212207. The reversal of 12101021212203 is 30221212010121.

It is not a de Polignac number, because 12101021212203 - 2¹ = 12101021212201 is a prime.

It is a super-2 number, since 2×12101021212203² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12101021212201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8730894843 + ... + 8730896228.

It is an arithmetic number, because the mean of its divisors is an integer number (908013135744).

Almost surely, 2^{12101021212203} is an apocalyptic number.

12101021212203 is a deficient number, since it is larger than the sum of its proper divisors (9691294045653).

12101021212203 is a wasteful number, since it uses less digits than its factorization.

12101021212203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17461791095 (or 17461791092 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12101021212203 its reverse (30221212010121), we get a palindrome (42322233222324).

The spelling of 12101021212203 in words is "twelve trillion, one hundred one billion, twenty-one million, two hundred twelve thousand, two hundred three".