221212022211002 has 32 divisors (see below), whose sum is σ = 359287211796480. Its totient is φ = 101881211549040.

The previous prime is 221212022211001. The next prime is 221212022211023. The reversal of 221212022211002 is 200112220212122.

It is not an unprimeable number, because it can be changed into a prime (221212022211001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787438502 + ... + 787719377.

It is an arithmetic number, because the mean of its divisors is an integer number (11227725368640).

Almost surely, 2^{221212022211002} is an apocalyptic number.

221212022211002 is a deficient number, since it is larger than the sum of its proper divisors (138075189585478).

221212022211002 is a wasteful number, since it uses less digits than its factorization.

221212022211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575158018.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221212022211002 its reverse (200112220212122), we get a palindrome (421324242423124).

The spelling of 221212022211002 in words is "two hundred twenty-one trillion, two hundred twelve billion, twenty-two million, two hundred eleven thousand, two".