201211121210 has 16 divisors (see below), whose sum is σ = 395105474592. Its totient is φ = 73167680400.

The previous prime is 201211121179. The next prime is 201211121227. The reversal of 201211121210 is 12121112102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914595896 + ... + 914596115.

It is an arithmetic number, because the mean of its divisors is an integer number (24694092162).

Almost surely, 2^201211121210 is an apocalyptic number.

201211121210 is a deficient number, since it is larger than the sum of its proper divisors (193894353382).

201211121210 is a wasteful number, since it uses less digits than its factorization.

201211121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829192029.

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

Adding to 201211121210 its reverse (12121112102), we get a palindrome (213332233312).

The spelling of 201211121210 in words is "two hundred one billion, two hundred eleven million, one hundred twenty-one thousand, two hundred ten".