221012012222002 has 8 divisors (see below), whose sum is σ = 338571593191296. Its totient is φ = 108154814491572.

The previous prime is 221012012221961. The next prime is 221012012222033. The reversal of 221012012222002 is 200222210210122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×221012012222002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175595809598 + ... + 1175595809785.

It is an arithmetic number, because the mean of its divisors is an integer number (42321449148912).

Almost surely, 2^{221012012222002} is an apocalyptic number.

221012012222002 is a deficient number, since it is larger than the sum of its proper divisors (117559580969294).

221012012222002 is a wasteful number, since it uses less digits than its factorization.

221012012222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351191619432.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221012012222002 its reverse (200222210210122), we get a palindrome (421234222432124).

The spelling of 221012012222002 in words is "two hundred twenty-one trillion, twelve billion, twelve million, two hundred twenty-two thousand, two".