212221012010 has 64 divisors (see below), whose sum is σ = 437530788864. Its totient is φ = 72601401600.

The previous prime is 212221012009. The next prime is 212221012043. The reversal of 212221012010 is 10210122212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103370144 + ... + 103372196.

It is an arithmetic number, because the mean of its divisors is an integer number (6836418576).

Almost surely, 2^212221012010 is an apocalyptic number.

212221012010 is an abundant number, since it is smaller than the sum of its proper divisors (225309776854).

212221012010 is a wasteful number, since it uses less digits than its factorization.

212221012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212221012010 its reverse (10210122212), we get a palindrome (222431134222).

The spelling of 212221012010 in words is "two hundred twelve billion, two hundred twenty-one million, twelve thousand, ten".