212210222220002 has 4 divisors (see below), whose sum is σ = 318315333330006. Its totient is φ = 106105111110000.

The previous prime is 212210222219981. The next prime is 212210222220041. The reversal of 212210222220002 is 200022222012212.

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

It can be written as a sum of positive squares in only one way, i.e., 155385174998881 + 56825047221121 = 12465359^2 + 7538239^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53052555554999 + ... + 53052555555002.

Almost surely, 2^{212210222220002} is an apocalyptic number.

212210222220002 is a deficient number, since it is larger than the sum of its proper divisors (106105111110004).

212210222220002 is a wasteful number, since it uses less digits than its factorization.

212210222220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106105111110003.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 212210222220002 its reverse (200022222012212), we get a palindrome (412232444232214).

The spelling of 212210222220002 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twenty-two million, two hundred twenty thousand, two".