101220012101211 has 32 divisors (see below), whose sum is σ = 141805233131520. Its totient is φ = 64099539592704.

The previous prime is 101220012101161. The next prime is 101220012101251. The reversal of 101220012101211 is 112101210022101.

It is a happy number.

It is not a de Polignac number, because 101220012101211 - 2⁷ = 101220012101083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101220012101251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1748626 + ... + 14335191.

It is an arithmetic number, because the mean of its divisors is an integer number (4431413535360).

Almost surely, 2^{101220012101211} is an apocalyptic number.

101220012101211 is a deficient number, since it is larger than the sum of its proper divisors (40585221030309).

101220012101211 is a wasteful number, since it uses less digits than its factorization.

101220012101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16084475.

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

Adding to 101220012101211 its reverse (112101210022101), we get a palindrome (213321222123312).

The spelling of 101220012101211 in words is "one hundred one trillion, two hundred twenty billion, twelve million, one hundred one thousand, two hundred eleven".