22001211002212 has 24 divisors (see below), whose sum is σ = 41463951807096. Its totient is φ = 10154372978688.

The previous prime is 22001211002161. The next prime is 22001211002227. The reversal of 22001211002212 is 21220011210022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7986276 + 22001203015936 = 2826^2 + 4690544^2 .

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, 26288598 + ... + 27112594.

It is an arithmetic number, because the mean of its divisors is an integer number (1727664658629).

Almost surely, 2^{22001211002212} is an apocalyptic number.

It is an amenable number.

22001211002212 is a deficient number, since it is larger than the sum of its proper divisors (19462740804884).

22001211002212 is a wasteful number, since it uses less digits than its factorization.

22001211002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337487 (or 1337485 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22001211002212 its reverse (21220011210022), we get a palindrome (43221222212234).

The spelling of 22001211002212 in words is "twenty-two trillion, one billion, two hundred eleven million, two thousand, two hundred twelve".