2111212222210 has 32 divisors (see below), whose sum is σ = 4677147078912. Its totient is φ = 668163867840.

The previous prime is 2111212222159. The next prime is 2111212222241. The reversal of 2111212222210 is 122222121112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1160005806 + ... + 1160007625.

It is an arithmetic number, because the mean of its divisors is an integer number (146160846216).

Almost surely, 2^{2111212222210} is an apocalyptic number.

2111212222210 is an abundant number, since it is smaller than the sum of its proper divisors (2565934856702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111212222210 is a wasteful number, since it uses less digits than its factorization.

2111212222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320013458.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2111212222210 its reverse (122222121112), we get a palindrome (2233434343322).

The spelling of 2111212222210 in words is "two trillion, one hundred eleven billion, two hundred twelve million, two hundred twenty-two thousand, two hundred ten".