212122101011010 has 64 divisors (see below), whose sum is σ = 529351277773824. Its totient is φ = 54341616614400.

The previous prime is 212122101011003. The next prime is 212122101011021. The reversal of 212122101011010 is 10110101221212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 832311571 + ... + 832566390.

It is an arithmetic number, because the mean of its divisors is an integer number (8271113715216).

Almost surely, 2^{212122101011010} is an apocalyptic number.

212122101011010 is an abundant number, since it is smaller than the sum of its proper divisors (317229176762814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212122101011010 is a wasteful number, since it uses less digits than its factorization.

212122101011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664878139.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212122101011010 its reverse (10110101221212), we get a palindrome (222232202232222).

The spelling of 212122101011010 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred one million, eleven thousand, ten".