101210120011 has 32 divisors (see below), whose sum is σ = 140274118656. Its totient is φ = 70450128000.

The previous prime is 101210119993. The next prime is 101210120021. The reversal of 101210120011 is 110021012101.

It is not a de Polignac number, because 101210120011 - 2⁹ = 101210119499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101210120011.

It is not an unprimeable number, because it can be changed into a prime (101210120021) 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, 1599760 + ... + 1661821.

It is an arithmetic number, because the mean of its divisors is an integer number (4383566208).

Almost surely, 2^101210120011 is an apocalyptic number.

101210120011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101210120011 is a deficient number, since it is larger than the sum of its proper divisors (39063998645).

101210120011 is a wasteful number, since it uses less digits than its factorization.

101210120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261643.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101210120011 its reverse (110021012101), we get a palindrome (211231132112).

The spelling of 101210120011 in words is "one hundred one billion, two hundred ten million, one hundred twenty thousand, eleven".