221012212011202 has 16 divisors (see below), whose sum is σ = 332708495569632. Its totient is φ = 110109404734560.

The previous prime is 221012212011161. The next prime is 221012212011271. The reversal of 221012212011202 is 202110212210122.

It is a self number, because there is not a number n which added to its sum of digits gives 221012212011202.

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, 11901853 + ... + 24159439.

It is an arithmetic number, because the mean of its divisors is an integer number (20794280973102).

Almost surely, 2^{221012212011202} is an apocalyptic number.

221012212011202 is a deficient number, since it is larger than the sum of its proper divisors (111696283558430).

221012212011202 is a wasteful number, since it uses less digits than its factorization.

221012212011202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12289953.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221012212011202 its reverse (202110212210122), we get a palindrome (423122424221324).

The spelling of 221012212011202 in words is "two hundred twenty-one trillion, twelve billion, two hundred twelve million, eleven thousand, two hundred two".