212211201021222 has 32 divisors (see below), whose sum is σ = 457072445622240. Its totient is φ = 65295444660480.

The previous prime is 212211201021203. The next prime is 212211201021251. The reversal of 212211201021222 is 222120102112212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10393554 + ... + 23074842.

It is an arithmetic number, because the mean of its divisors is an integer number (14283513925695).

Almost surely, 2^{212211201021222} is an apocalyptic number.

212211201021222 is an abundant number, since it is smaller than the sum of its proper divisors (244861244601018).

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

212211201021222 is a wasteful number, since it uses less digits than its factorization.

212211201021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12895848.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212211201021222 its reverse (222120102112212), we get a palindrome (434331303133434).

The spelling of 212211201021222 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred one million, twenty-one thousand, two hundred twenty-two".