2121011102210 has 128 divisors (see below), whose sum is σ = 5131824574464. Its totient is φ = 609550421760.

The previous prime is 2121011102209. The next prime is 2121011102219. The reversal of 2121011102210 is 122011101212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2121011102219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8759429 + ... + 8998311.

It is an arithmetic number, because the mean of its divisors is an integer number (40092379488).

Almost surely, 2^{2121011102210} is an apocalyptic number.

2121011102210 is an abundant number, since it is smaller than the sum of its proper divisors (3010813472254).

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

2121011102210 is a wasteful number, since it uses less digits than its factorization.

2121011102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239808.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2121011102210 its reverse (122011101212), we get a palindrome (2243022203422).

The spelling of 2121011102210 in words is "two trillion, one hundred twenty-one billion, eleven million, one hundred two thousand, two hundred ten".