211220012012101 has 8 divisors (see below), whose sum is σ = 227507479279520. Its totient is φ = 195449607197712.

The previous prime is 211220012012081. The next prime is 211220012012123. The reversal of 211220012012101 is 101210210022112.

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

It is a cyclic number.

It is not a de Polignac number, because 211220012012101 - 2¹⁹ = 211220011487813 is a prime.

It is a super-2 number, since 2×211220012012101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220012012131) 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, 129265612410 + ... + 129265614043.

It is an arithmetic number, because the mean of its divisors is an integer number (28438434909940).

Almost surely, 2^{211220012012101} is an apocalyptic number.

It is an amenable number.

211220012012101 is a deficient number, since it is larger than the sum of its proper divisors (16287467267419).

211220012012101 is a wasteful number, since it uses less digits than its factorization.

211220012012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258531226515.

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

Adding to 211220012012101 its reverse (101210210022112), we get a palindrome (312430222034213).

The spelling of 211220012012101 in words is "two hundred eleven trillion, two hundred twenty billion, twelve million, twelve thousand, one hundred one".