210210122021002 has 4 divisors (see below), whose sum is σ = 315315183031506. Its totient is φ = 105105061010500.

The previous prime is 210210122020957. The next prime is 210210122021027. The reversal of 210210122021002 is 200120221012012.

It is a happy number.

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., 117508830342201 + 92701291678801 = 10840149^2 + 9628151^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52552530505249 + ... + 52552530505252.

Almost surely, 2^{210210122021002} is an apocalyptic number.

210210122021002 is a deficient number, since it is larger than the sum of its proper divisors (105105061010504).

210210122021002 is a wasteful number, since it uses less digits than its factorization.

210210122021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105105061010503.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210210122021002 its reverse (200120221012012), we get a palindrome (410330343033014).

The spelling of 210210122021002 in words is "two hundred ten trillion, two hundred ten billion, one hundred twenty-two million, twenty-one thousand, two".