221012201000212 has 24 divisors (see below), whose sum is σ = 405195415837632. Its totient is φ = 105280365960000.

The previous prime is 221012201000207. The next prime is 221012201000233. The reversal of 221012201000212 is 212000102210122.

It is a happy number.

It is a super-2 number, since 2×221012201000212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 4785448089 + ... + 4785494272.

It is an arithmetic number, because the mean of its divisors is an integer number (16883142326568).

Almost surely, 2^{221012201000212} is an apocalyptic number.

It is an amenable number.

221012201000212 is a deficient number, since it is larger than the sum of its proper divisors (184183214837420).

221012201000212 is a wasteful number, since it uses less digits than its factorization.

221012201000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9570942639 (or 9570942637 counting only the distinct ones).

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

Adding to 221012201000212 its reverse (212000102210122), we get a palindrome (433012303210334).

The spelling of 221012201000212 in words is "two hundred twenty-one trillion, twelve billion, two hundred one million, two hundred twelve", and thus it is an aban number.