10220211202123 has 4 divisors (see below), whose sum is σ = 11006381294608. Its totient is φ = 9434041109640.

The previous prime is 10220211202121. The next prime is 10220211202139. The reversal of 10220211202123 is 32120211202201.

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

It is a cyclic number.

It is not a de Polignac number, because 10220211202123 - 2¹ = 10220211202121 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 10220211202123.

It is not an unprimeable number, because it can be changed into a prime (10220211202121) 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, 393085046223 + ... + 393085046248.

It is an arithmetic number, because the mean of its divisors is an integer number (2751595323652).

Almost surely, 2^{10220211202123} is an apocalyptic number.

10220211202123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10220211202123 is a deficient number, since it is larger than the sum of its proper divisors (786170092485).

10220211202123 is an equidigital number, since it uses as much as digits as its factorization.

10220211202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786170092484.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10220211202123 its reverse (32120211202201), we get a palindrome (42340422404324).

The spelling of 10220211202123 in words is "ten trillion, two hundred twenty billion, two hundred eleven million, two hundred two thousand, one hundred twenty-three".