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1020122210021 = 7117729810419
BaseRepresentation
bin11101101100001000000…
…01011001111011100101
310121112010001220121100212
432312010001121323211
5113203202241210041
62100345423145205
7133462402500245
oct16660401317345
93545101817325
101020122210021
113636a4436132
12145858a45205
13752740922a5
1437534a61b25
151b8080c28eb
hexed84059ee5

1020122210021 has 8 divisors (see below), whose sum is σ = 1034549755200. Its totient is φ = 1005696321280.

The previous prime is 1020122210011. The next prime is 1020122210039. The reversal of 1020122210021 is 1200122210201.

1020122210021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020122210021 - 234 = 1002942340837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020122209978 and 1020122210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020122210011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853550 + ... + 1663968.

It is an arithmetic number, because the mean of its divisors is an integer number (129318719400).

Almost surely, 21020122210021 is an apocalyptic number.

It is an amenable number.

1020122210021 is a deficient number, since it is larger than the sum of its proper divisors (14427545179).

1020122210021 is an equidigital number, since it uses as much as digits as its factorization.

1020122210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828219.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020122210021 its reverse (1200122210201), we get a palindrome (2220244420222).

The spelling of 1020122210021 in words is "one trillion, twenty billion, one hundred twenty-two million, two hundred ten thousand, twenty-one".

Divisors: 1 71 17729 810419 1258759 57539749 14367918451 1020122210021