2121123331030 has 32 divisors (see below), whose sum is σ = 4165219285920. Its totient is φ = 771298245120.

The previous prime is 2121123330971. The next prime is 2121123331087. The reversal of 2121123331030 is 301333211212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2121123330992 and 2121123331010.

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, 4608112 + ... + 5047468.

It is an arithmetic number, because the mean of its divisors is an integer number (130163102685).

Almost surely, 2^{2121123331030} is an apocalyptic number.

2121123331030 is a deficient number, since it is larger than the sum of its proper divisors (2044095954890).

2121123331030 is a wasteful number, since it uses less digits than its factorization.

2121123331030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483264.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2121123331030 its reverse (301333211212), we get a palindrome (2422456542242).

The spelling of 2121123331030 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-three million, three hundred thirty-one thousand, thirty".