2121203021210 has 256 divisors, whose sum is σ = 4906369843200. Its totient is φ = 642278937600.

The previous prime is 2121203021183. The next prime is 2121203021213. The reversal of 2121203021210 is 121203021212.

It is not an unprimeable number, because it can be changed into a prime (2121203021213) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1054799105 + ... + 1054801115.

It is an arithmetic number, because the mean of its divisors is an integer number (19165507200).

Almost surely, 2^{2121203021210} is an apocalyptic number.

2121203021210 is an abundant number, since it is smaller than the sum of its proper divisors (2785166821990).

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

2121203021210 is a wasteful number, since it uses less digits than its factorization.

2121203021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2121203021210 its reverse (121203021212), we get a palindrome (2242406042422).

The spelling of 2121203021210 in words is "two trillion, one hundred twenty-one billion, two hundred three million, twenty-one thousand, two hundred ten".