2120220111000 has 64 divisors (see below), whose sum is σ = 6615086755680. Its totient is φ = 565392028800.

The previous prime is 2120220110993. The next prime is 2120220111007. The reversal of 2120220111000 is 1110220212.

It is an interprime number because it is at equal distance from previous prime (2120220110993) and next prime (2120220111007).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120220111007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353367019 + ... + 353373018.

Almost surely, 2^{2120220111000} is an apocalyptic number.

2120220111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120220111000 is an abundant number, since it is smaller than the sum of its proper divisors (4494866644680).

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

2120220111000 is a wasteful number, since it uses less digits than its factorization.

2120220111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706740061 (or 706740047 counting only the distinct ones).

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

Adding to 2120220111000 its reverse (1110220212), we get a palindrome (2121330331212).

The spelling of 2120220111000 in words is "two trillion, one hundred twenty billion, two hundred twenty million, one hundred eleven thousand".