70221212102 has 4 divisors (see below), whose sum is σ = 105331818156. Its totient is φ = 35110606050.

The previous prime is 70221212101. The next prime is 70221212167. The reversal of 70221212102 is 20121212207.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70221212101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17555303024 + ... + 17555303027.

It is an arithmetic number, because the mean of its divisors is an integer number (26332954539).

Almost surely, 2^70221212102 is an apocalyptic number.

70221212102 is a deficient number, since it is larger than the sum of its proper divisors (35110606054).

70221212102 is a wasteful number, since it uses less digits than its factorization.

70221212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35110606053.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 70221212102 its reverse (20121212207), we get a palindrome (90342424309).

The spelling of 70221212102 in words is "seventy billion, two hundred twenty-one million, two hundred twelve thousand, one hundred two".