210202220122 has 16 divisors (see below), whose sum is σ = 329840764200. Its totient is φ = 100336741120.

The previous prime is 210202220101. The next prime is 210202220159. The reversal of 210202220122 is 221022202012.

It can be written as a sum of positive squares in 4 ways, for example, as 164991128481 + 45211091641 = 406191^2 + 212629^2 .

It is a super-3 number, since 3×210202220122³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210202220096 and 210202220105.

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, 20355379 + ... + 20365702.

Almost surely, 2^210202220122 is an apocalyptic number.

210202220122 is a deficient number, since it is larger than the sum of its proper divisors (119638544078).

210202220122 is a wasteful number, since it uses less digits than its factorization.

210202220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40721201.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 210202220122 its reverse (221022202012), we get a palindrome (431224422134).

The spelling of 210202220122 in words is "two hundred ten billion, two hundred two million, two hundred twenty thousand, one hundred twenty-two".