2120121012000 has 192 divisors, whose sum is σ = 6963666038784. Its totient is φ = 563888230400.

The previous prime is 2120121011993. The next prime is 2120121012043. The reversal of 2120121012000 is 2101210212.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4365352 + ... + 4826648.

It is an arithmetic number, because the mean of its divisors is an integer number (36269093952).

Almost surely, 2^{2120121012000} is an apocalyptic number.

2120121012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120121012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3481833019392).

2120121012000 is an abundant number, since it is smaller than the sum of its proper divisors (4843545026784).

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

2120121012000 is a wasteful number, since it uses less digits than its factorization.

2120121012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461708 (or 461690 counting only the distinct ones).

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

Adding to 2120121012000 its reverse (2101210212), we get a palindrome (2122222222212).

The spelling of 2120121012000 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, twelve thousand".