101211112020109 has 32 divisors (see below), whose sum is σ = 129098537406720. Its totient is φ = 77176422715392.

The previous prime is 101211112020091. The next prime is 101211112020131. The reversal of 101211112020109 is 901020211112101.

It is a happy number.

It is not a de Polignac number, because 101211112020109 - 2⁵ = 101211112020077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101211112020109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211112020209) 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, 33613204 + ... + 36500269.

It is an arithmetic number, because the mean of its divisors is an integer number (4034329293960).

Almost surely, 2^{101211112020109} is an apocalyptic number.

It is an amenable number.

101211112020109 is a deficient number, since it is larger than the sum of its proper divisors (27887425386611).

101211112020109 is a wasteful number, since it uses less digits than its factorization.

101211112020109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70114069.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 101211112020109 in words is "one hundred one trillion, two hundred eleven billion, one hundred twelve million, twenty thousand, one hundred nine".