20202121211110 has 8 divisors (see below), whose sum is σ = 36363818180016. Its totient is φ = 8080848484440.

The previous prime is 20202121211101. The next prime is 20202121211137. The reversal of 20202121211110 is 1111212120202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010106060546 + ... + 1010106060565.

It is an arithmetic number, because the mean of its divisors is an integer number (4545477272502).

Almost surely, 2^{20202121211110} is an apocalyptic number.

20202121211110 is a deficient number, since it is larger than the sum of its proper divisors (16161696968906).

20202121211110 is a wasteful number, since it uses less digits than its factorization.

20202121211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020212121118.

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

Adding to 20202121211110 its reverse (1111212120202), we get a palindrome (21313333331312).

The spelling of 20202121211110 in words is "twenty trillion, two hundred two billion, one hundred twenty-one million, two hundred eleven thousand, one hundred ten".