20210111021210 has 16 divisors (see below), whose sum is σ = 39685308914592. Its totient is φ = 7349131280400.

The previous prime is 20210111021201. The next prime is 20210111021237. The reversal of 20210111021210 is 1212011101202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91864140896 + ... + 91864141115.

It is an arithmetic number, because the mean of its divisors is an integer number (2480331807162).

Almost surely, 2^{20210111021210} is an apocalyptic number.

20210111021210 is a deficient number, since it is larger than the sum of its proper divisors (19475197893382).

20210111021210 is a wasteful number, since it uses less digits than its factorization.

20210111021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183728282029.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20210111021210 its reverse (1212011101202), we get a palindrome (21422122122412).

The spelling of 20210111021210 in words is "twenty trillion, two hundred ten billion, one hundred eleven million, twenty-one thousand, two hundred ten".