11001211020120 has 64 divisors (see below), whose sum is σ = 33222200221440. Its totient is φ = 2914228080000.

The previous prime is 11001211020097. The next prime is 11001211020139. The reversal of 11001211020120 is 2102011210011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11001211020096 and 11001211020105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303547306 + ... + 303583545.

It is an arithmetic number, because the mean of its divisors is an integer number (519096878460).

Almost surely, 2^{11001211020120} is an apocalyptic number.

11001211020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001211020120 is an abundant number, since it is smaller than the sum of its proper divisors (22220989201320).

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

11001211020120 is a wasteful number, since it uses less digits than its factorization.

11001211020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607131016 (or 607131012 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11001211020120 its reverse (2102011210011), we get a palindrome (13103222230131).

The spelling of 11001211020120 in words is "eleven trillion, one billion, two hundred eleven million, twenty thousand, one hundred twenty".