2123022402102 has 96 divisors (see below), whose sum is σ = 5118556734720. Its totient is φ = 584634335040.

The previous prime is 2123022402049. The next prime is 2123022402103. The reversal of 2123022402102 is 2012042203212.

It is a super-3 number, since 3×2123022402102³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123022402103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4650303 + ... + 5086389.

It is an arithmetic number, because the mean of its divisors is an integer number (53318299320).

Almost surely, 2^{2123022402102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123022402102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2559278367360).

2123022402102 is an abundant number, since it is smaller than the sum of its proper divisors (2995534332618).

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

2123022402102 is a wasteful number, since it uses less digits than its factorization.

2123022402102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436706 (or 436699 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 2123022402102 its reverse (2012042203212), we get a palindrome (4135064605314).

The spelling of 2123022402102 in words is "two trillion, one hundred twenty-three billion, twenty-two million, four hundred two thousand, one hundred two".