2111020002120 has 32 divisors (see below), whose sum is σ = 6333060006720. Its totient is φ = 562938667200.

The previous prime is 2111020002109. The next prime is 2111020002121. The reversal of 2111020002120 is 212000201112.

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 = 2111020002096 and 2111020002105.

It is not an unprimeable number, because it can be changed into a prime (2111020002121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8795916556 + ... + 8795916795.

It is an arithmetic number, because the mean of its divisors is an integer number (197908125210).

Almost surely, 2^{2111020002120} is an apocalyptic number.

2111020002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111020002120 is an abundant number, since it is smaller than the sum of its proper divisors (4222040004600).

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

2111020002120 is a wasteful number, since it uses less digits than its factorization.

2111020002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17591833365 (or 17591833361 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2111020002120 its reverse (212000201112), we get a palindrome (2323020203232).

The spelling of 2111020002120 in words is "two trillion, one hundred eleven billion, twenty million, two thousand, one hundred twenty".