Search a number
-
+
1022122010221 = 13713217344231
BaseRepresentation
bin11101101111110110011…
…10000010011001101101
310121201021102212222111221
432313323032002121231
5113221301213311341
62101320101543341
7133563064510444
oct16677316023155
93551242788457
101022122010221
11364530256674
12146116714b51
1375502499710
14376844a7d5b
151b8c3945ed1
hexedfb38266d

1022122010221 has 16 divisors (see below), whose sum is σ = 1116600484608. Its totient is φ = 929916691200.

The previous prime is 1022122010213. The next prime is 1022122010233. The reversal of 1022122010221 is 1220102212201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1022122010221 - 23 = 1022122010213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022122010195 and 1022122010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022122011221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2797176 + ... + 3141406.

It is an arithmetic number, because the mean of its divisors is an integer number (69787530288).

Almost surely, 21022122010221 is an apocalyptic number.

It is an amenable number.

1022122010221 is a deficient number, since it is larger than the sum of its proper divisors (94478474387).

1022122010221 is a wasteful number, since it uses less digits than its factorization.

1022122010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347532.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1022122010221 its reverse (1220102212201), we get a palindrome (2242224222422).

The spelling of 1022122010221 in words is "one trillion, twenty-two billion, one hundred twenty-two million, ten thousand, two hundred twenty-one".

Divisors: 1 13 71 923 3217 41821 228407 344231 2969291 4475003 24440401 317725213 1107391127 14396084651 78624770017 1022122010221