2021210122210 has 16 divisors (see below), whose sum is σ = 3638240758656. Its totient is φ = 808470151408.

The previous prime is 2021210122201. The next prime is 2021210122231. The reversal of 2021210122210 is 122210121202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115764 + ... + 2299423.

It is an arithmetic number, because the mean of its divisors is an integer number (227390047416).

Almost surely, 2^{2021210122210} is an apocalyptic number.

2021210122210 is a deficient number, since it is larger than the sum of its proper divisors (1617030636446).

2021210122210 is a wasteful number, since it uses less digits than its factorization.

2021210122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474377.

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

Adding to 2021210122210 its reverse (122210121202), we get a palindrome (2143420243412).

The spelling of 2021210122210 in words is "two trillion, twenty-one billion, two hundred ten million, one hundred twenty-two thousand, two hundred ten".