20122111212010 has 8 divisors (see below), whose sum is σ = 36219800181636. Its totient is φ = 8048844484800.

The previous prime is 20122111212001. The next prime is 20122111212011. The reversal of 20122111212010 is 1021211122102.

It can be written as a sum of positive squares in 2 ways, for example, as 17594643992409 + 2527467219601 = 4194597^2 + 1589801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20122111212011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006105560591 + ... + 1006105560610.

Almost surely, 2^{20122111212010} is an apocalyptic number.

20122111212010 is a deficient number, since it is larger than the sum of its proper divisors (16097688969626).

20122111212010 is a wasteful number, since it uses less digits than its factorization.

20122111212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012211121208.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20122111212010 its reverse (1021211122102), we get a palindrome (21143322334112).

The spelling of 20122111212010 in words is "twenty trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twelve thousand, ten".