1111212202101 has 8 divisors (see below), whose sum is σ = 1568770167744. Its totient is φ = 697231185600.

The previous prime is 1111212202081. The next prime is 1111212202127. The reversal of 1111212202101 is 1012022121111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1111212202101 - 2¹¹ = 1111212200053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111212202171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10894237225 + ... + 10894237326.

It is an arithmetic number, because the mean of its divisors is an integer number (196096270968).

Almost surely, 2^{1111212202101} is an apocalyptic number.

It is an amenable number.

1111212202101 is a deficient number, since it is larger than the sum of its proper divisors (457557965643).

1111212202101 is a wasteful number, since it uses less digits than its factorization.

1111212202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21788474571.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1111212202101 its reverse (1012022121111), we get a palindrome (2123234323212).

The spelling of 1111212202101 in words is "one trillion, one hundred eleven billion, two hundred twelve million, two hundred two thousand, one hundred one".