11211010120 has 16 divisors (see below), whose sum is σ = 25224772860. Its totient is φ = 4484404032.

The previous prime is 11211010117. The next prime is 11211010123. The reversal of 11211010120 is 2101011211.

It is an interprime number because it is at equal distance from previous prime (11211010117) and next prime (11211010123).

It can be written as a sum of positive squares in 2 ways, for example, as 10927357156 + 283652964 = 104534^2 + 16842^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11211010097 and 11211010106.

It is not an unprimeable number, because it can be changed into a prime (11211010123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140137587 + ... + 140137666.

Almost surely, 2^11211010120 is an apocalyptic number.

11211010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211010120 is an abundant number, since it is smaller than the sum of its proper divisors (14013762740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211010120 is a wasteful number, since it uses less digits than its factorization.

11211010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280275264 (or 280275260 counting only the distinct ones).

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

Adding to 11211010120 its reverse (2101011211), we get a palindrome (13312021331).

The spelling of 11211010120 in words is "eleven billion, two hundred eleven million, ten thousand, one hundred twenty".