2210030212121 has 4 divisors (see below), whose sum is σ = 2286238150500. Its totient is φ = 2133822273744.

The previous prime is 2210030212109. The next prime is 2210030212133. The reversal of 2210030212121 is 1212120300122.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2210030212109) and next prime (2210030212133).

It can be written as a sum of positive squares in 2 ways, for example, as 1756515512896 + 453514699225 = 1325336^2 + 673435^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210030212121 - 2⁶ = 2210030212057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2210030212121.

It is not an unprimeable number, because it can be changed into a prime (2210030212171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38103969146 + ... + 38103969203.

It is an arithmetic number, because the mean of its divisors is an integer number (571559537625).

Almost surely, 2^{2210030212121} is an apocalyptic number.

It is an amenable number.

2210030212121 is a deficient number, since it is larger than the sum of its proper divisors (76207938379).

2210030212121 is an equidigital number, since it uses as much as digits as its factorization.

2210030212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76207938378.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2210030212121 its reverse (1212120300122), we get a palindrome (3422150512243).

The spelling of 2210030212121 in words is "two trillion, two hundred ten billion, thirty million, two hundred twelve thousand, one hundred twenty-one".