10122121222220 has 96 divisors (see below), whose sum is σ = 24977437986816. Its totient is φ = 3373302412800.

The previous prime is 10122121222217. The next prime is 10122121222319. The reversal of 10122121222220 is 2222212122101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10122121222192 and 10122121222201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1698032 + ... + 4809111.

It is an arithmetic number, because the mean of its divisors is an integer number (260181645696).

Almost surely, 2^{10122121222220} is an apocalyptic number.

10122121222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10122121222220 is an abundant number, since it is smaller than the sum of its proper divisors (14855316764596).

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

10122121222220 is a wasteful number, since it uses less digits than its factorization.

10122121222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507471 (or 6507469 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 10122121222220 its reverse (2222212122101), we get a palindrome (12344333344321).

The spelling of 10122121222220 in words is "ten trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty".